Optimize .htaccess file rewrite rules - .htaccess

Question

my .htaccess file is like following, after reading many articles, blogs, website. I have designed it, but i know after all this it became like a clutter and there is still scope of sanitizing and perfection in it.
Please suggest me how to optimize in best way.
This code majorly talks about
1) Redirect rules
2) Content Security Policy
3) Optimized content delivery
4) Declaration of MIME Types
> `ServerSignature Off
php_value max_input_vars 40000
php_value suhosin.get.max_vars 40000
php_value suhosin.post.max_vars 40000
php_value suhosin.request.max_vars 40000
# -------------------------------------------------------------------------------------------------------------- #
# BEGIN (mt) controlled settings
<IfModule !mod_fcgid.c>
AddHandler php-stable .php
</IfModule>
<IfModule mod_fcgid.c>
AddHandler fcgid-script .php
FcgidWrapper /etc/apache2/gs-bin/php-stable-wrapper .php
<Files *.php>
Options +ExecCGI
</Files>
</IfModule>
# END (mt) controlled settings
# -------------------------------------------------------------------------------------------------------------- #
# DECLARING MIME TYPES
<IfModule mod_mime.c>
AddType application/x-httpd-php .php
AddType application/x-httpd-php .phtml
AddType application/x-httpd-php .php3
AddType application/x-httpd-php .php4
AddType application/x-httpd-php .html
AddType application/x-httpd-php-source .phps
AddType text/html .html
AddType text/css .css
AddType image/x-icon .ico
AddType font/woff .woff
AddType font/woff2 .woff2
AddType application/vnd.ms-fontobject .eot
AddType application/x-font-ttf .ttf .ttc
AddType font/opentype .otf
</IfModule>
# -------------------------------------------------------------------------------------------------------------- #
# EXTRA SECURITY HEADERS IN COOKIES
<IfModule mod_headers.c>
Header always set X-XSS-Protection "1; mode=block"
Header always append X-Frame-Options "SAMEORIGIN"
Header always set X-Content-Type-Options "nosniff"
Header set Strict-Transport-Security "max-age=63072000; includeSubDomains; preload"
# Header set X-Frame-Options: DENY
Header set Access-Control-Allow-Origin "https://www.websitename.com/"
Header set Access-Control-Allow-Headers "X-accept-charset, X-accept, X-test-header, Origin, X-Requested-With, Content-Type, Accept"
Header set Access-Control-Allow-Methods "OPTIONS, GET, POST, PUT, DELETE"
Header set Access-Control-Allow-Credentials "true"
Header set Access-Control-Expose-Headers "Content-Type"
Header set x-xhr-request "true"
Header set Referrer-Policy: strict-origin-when-cross-origin
Header always edit Set-Cookie (.*) "$1; HTTPOnly; Secure; SameSite=Strict"
Header set Content-Security-Policy: "default-src 'self' https://*.youtube.com ; frame-ancestors 'none'; connect-src 'self' ; script-src 'self' blob: data: 'unsafe-inline' 'unsafe-eval' www.google-analytics.com https://maps.googleapis.com https://maps.gstatic.com ; object-src 'none'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src 'self' https://www.cartonrent.com/images/logo.png 'unsafe-inline' 'unsafe-eval' blob: data: www.google-analytics.com https://cartonrent.com; font-src 'self' https://fonts.gstatic.com; worker-src 'self' www.google.com https://maps.google.com "
Header set X-Content-Security-Policy: "default-src 'self' https://*.youtube.com ; frame-ancestors 'none'; connect-src 'self' ; script-src 'self' blob: data: 'unsafe-inline' 'unsafe-eval' www.google-analytics.com https://maps.googleapis.com https://maps.gstatic.com ; object-src 'none'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src 'self' https://www.cartonrent.com/images/logo.png 'unsafe-inline' 'unsafe-eval' blob: data: www.google-analytics.com https://cartonrent.com; font-src 'self' https://fonts.gstatic.com; worker-src 'self' www.google.com https://maps.google.com "
Header set X-WebKit-CSP: "default-src 'self' https://*.youtube.com ; frame-ancestors 'none'; connect-src 'self' ; script-src 'self' blob: data: 'unsafe-inline' 'unsafe-eval' www.google-analytics.com https://maps.googleapis.com https://maps.gstatic.com ; object-src 'none'; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; img-src 'self' https://www.cartonrent.com/images/logo.png 'unsafe-inline' 'unsafe-eval' blob: data: www.google-analytics.com https://cartonrent.com; font-src 'self' https://fonts.gstatic.com; worker-src 'self' www.google.com https://maps.google.com "
Header always set X-Permitted-Cross-Domain-Policies "master-only"
Header always set Cache-Control "public, max-age=31536000, immutable"
#Header always set Pragma "no-cache"
Header always set Expires "-1"
Header append Cache-Control "public"
<FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|js|css)$">
Header unset Last-Modified
</FilesMatch>
<FilesMatch "\.(css|png|js)$">
Header set X-Content-Type-Options nosniff
</FilesMatch>
</IfModule>
# -------------------------------------------------------------------------------------------------------------- #
# REWRITE RULES
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ index.php [L]
RewriteCond %{HTTP_USER_AGENT} libwww-perl.*
RewriteRule .* ? [F,L]
# Recursive rule to replace space by - from URI OR query string (anywhere)
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s/+(.*?)(?:\+|%20|\s)+(.+?)\sHTTP [NC]
RewriteRule ^ /%1-%2 [L,NE,R]
# Recursive rule to replace space by - from URI OR query string (anywhere)
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s/+(.*?)(?:\+|%20|\s)+(.+?)\sHTTP [NC]
RewriteRule ^ /%1-%2 [L,NE,R]
# URL Canonicalization (adding www. prefix to URL)
RewriteCond %{HTTP_HOST} !^www.websitename.com$ [NC]
RewriteRule ^(.*)$ https://www.websitename.com/$1 [R=301,L]
# Deny pages from all except XMLHttpRequest
RewriteCond %{HTTP:X-Requested-With} !=XMLHttpRequest
RewriteCond %{HTTP:X-REQUESTED-WITH} !^(XMLHttpRequest)$
RewriteRule table-view+.php$ - [L,F]
</IfModule>
# RewriteCond %{REQUEST_METHOD} ^TRACE
# RewriteRule .* - [F]
# -------------------------------------------------------------------------------------------------------------- #
# Keep Connection Alive
<ifModule mod_headers.c>
Header set Connection keep-alive
</ifModule>
# -------------------------------------------------------------------------------------------------------------- #
# SET THE DEFAULT LANGUAGE
DefaultLanguage en-US
# -------------------------------------------------------------------------------------------------------------- #
# SET THE DEFAULT CHARACTER SET
AddDefaultCharset UTF-8
AddCharset utf-8 .html .css .js
# -------------------------------------------------------------------------------------------------------------- #
# IMAGEMAGIK IMAGE COMPRESSION LIMIT
SetEnv MAGICK_THREAD_LIMIT 2
# -------------------------------------------------------------------------------------------------------------- #
# NO Etags
FileETag none
# -------------------------------------------------------------------------------------------------------------- #
# PREVENT FOLDER LISTING
IndexIgnore *
# DISABLE DIRECTORY BROWSING
Options All -Indexes
# -------------------------------------------------------------------------------------------------------------- #
# COMPRESS TEXT, HTML, JAVASCRIPT, CSS, XML, fonts:
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/javascript
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE text/vtt
AddOutputFilterByType DEFLATE text/x-component
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/js
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-httpd-fastphp
AddOutputFilterByType DEFLATE application/atom+xml
AddOutputFilterByType DEFLATE application/json
AddOutputFilterByType DEFLATE application/ld+json
AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
AddOutputFilterByType DEFLATE application/x-font-ttf
AddOutputFilterByType DEFLATE application/x-web-app-manifest+json
AddOutputFilterByType DEFLATE font/opentype
AddOutputFilterByType DEFLATE image/svg+xml
AddOutputFilterByType DEFLATE image/x-icon
# OR, COMPRESS CERTAIN FILE TYPES BY EXTENSION:
<files *.html>
SetOutputFilter DEFLATE
</files>
# Java script compression
<FilesMatch "\.js$">
RewriteEngine On
RewriteCond %{HTTP:Accept-Encoding} gzip
RewriteCond %{REQUEST_FILENAME}.gz -f
RewriteRule (.*)\.js$ $1\.js.gz [L]
ForceType text/javascript
</FilesMatch>
# Java script - vary accept encoding
<FilesMatch "\.js\.gz$">
ForceType text/javascript
Header set Content-Encoding gzip
Header set Vary Accept-Encoding
</FilesMatch>
#Enable gzip with mod_gzip
<ifModule mod_gzip.c>
mod_gzip_on Yes
mod_gzip_dechunk Yes
mod_gzip_item_include file .(html?|txt|css|js|php|pl)$
mod_gzip_item_include handler ^cgi-script$
mod_gzip_item_include mime ^text/.*
mod_gzip_item_include mime ^application/x-javascript.*
mod_gzip_item_exclude mime ^image/.*
mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*
</ifModule>
# -------------------------------------------------------------------------------------------------------------- #
# DENY ACCESS TO EVIL ROBOTS SITE RIPPERS OFFLINE BROWSERS AND OTHER NASTY SCUM
RewriteBase /
RewriteCond %{HTTP_USER_AGENT} ^Anarchie [OR]
RewriteCond %{HTTP_USER_AGENT} ^ASPSeek [OR]
RewriteCond %{HTTP_USER_AGENT} ^attach [OR]
RewriteCond %{HTTP_USER_AGENT} ^autoemailspider [OR]
RewriteCond %{HTTP_USER_AGENT} ^Xaldon\ WebSpider [OR]
RewriteCond %{HTTP_USER_AGENT} ^Xenu [OR]
RewriteCond %{HTTP_USER_AGENT} ^Zeus.*Webster [OR]
RewriteCond %{HTTP_USER_AGENT} ^Zeus
RewriteRule ^.* - [F,L]
# -------------------------------------------------------------------------------------------------------------- #
# SERVE CUSTOM ERROR PAGES
ErrorDocument 400 /errors/400.html
ErrorDocument 401 /errors/401.html
ErrorDocument 403 /errors/403.html
ErrorDocument 404 /errors/404.html
ErrorDocument 500 /errors/500.html
# -------------------------------------------------------------------------------------------------------------- #
# SETTINGS FOR PHP ERROR LOGING
# SUPPRESS PHP ERRORS FROM DISPLAYING IN THE BROWSER
php_flag display_startup_errors off
php_flag display_errors off
php_flag html_errors off
# LOG PHP ERRORS TO A FILE
php_flag log_errors on
php_value error_reporting 32767
php_value error_log "errorlog/error.log"
# DISABLE LOGGING REPEATED ERRORS
php_flag ignore_repeated_errors on
# PREVENT ACCESS TO PHP ERROR LOG
<Files error.log>
Order allow,deny
Deny from all
Satisfy All
</Files>
# -------------------------------------------------------------------------------------------------------------- #
# Zlib Configuration
<ifModule mod_php4.c>
php_value zlib.output_compression 16386
</ifModule>
# handler for phpsuexec..
<FilesMatch "\.(css|style)$">
SetHandler application/x-httpd-php
</FilesMatch>
# Force “File Save As” Prompt for following files
AddType application/octet-stream .pdf
AddType application/octet-stream .zip
AddType application/octet-stream .mov
# -------------------------------------------------------------------------------------------------------------- #`