PrettyFaces: poor performance on every request - jsf

Question

registering for new users in the pretty forum (https://www.ocpsoft.org/support/forum/prettyfaces-users/) currently does not seem to work, so i ask here for help:
we started to include latest prettyfaces 3.4.2 in our jsf 2.2 project and recognized a pretty poor performance on every POST and GET request.
we removed all our custom filters and servlet-listener so that nothing special remains in the config files, but prettyfaces stays unusable, although the rewrite-engine seems to work in general:
http://localhost:8080/vision9/member/576
after removing the pretty dependencies, everything goes back to "normal" state...
does anybody have a hint for this problem?
Update:
Performance is only fine when project-stage is Production. Setting following context-params as taken from
https://www.ocpsoft.org/support/topic/huge-performance-drop-even-with-empty-config/
did not solve the performance issue:
<context-param>
<param-name>org.ocpsoft.rewrite.config.CONFIG_RELOADING</param-name>
<param-value>false</param-value>
</context-param>
<context-param>
<param-name>org.ocpsoft.rewrite.annotation.BASE_PACKAGES</param-name>
<param-value>none</param-value>
</context-param>
here are our configuration files:
console-info during server-startup:
INFORMATION: RewriteFilter starting up...
Rewrite 3.4.2.Final initialized.
RewritePhaseListener starting up.
pom.xml:
<dependency>
<groupId>org.omnifaces</groupId>
<artifactId>omnifaces</artifactId>
<version>2.6.8</version>
</dependency>
<dependency>
<groupId>org.glassfish</groupId>
<artifactId>javax.faces</artifactId>
<version>2.2.14</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>4.0.0</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.ocpsoft.rewrite</groupId>
<artifactId>rewrite-servlet</artifactId>
<version>3.4.2.Final</version>
</dependency>
<dependency>
<groupId>org.ocpsoft.rewrite</groupId>
<artifactId>rewrite-config-prettyfaces</artifactId>
<version>3.4.2.Final</version>
</dependency>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
id="WebApp_ID" version="3.1">
<display-name>vision9</display-name>
<welcome-file-list>
<welcome-file>index.xhtml</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/javax.faces.resource/*</url-pattern>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
<context-param>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>server</param-value>
</context-param>
<context-param>
<param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
<param-value>resources.application</param-value>
</context-param>
<context-param>
<param-name>javax.faces.FACELETS_DEVELOPMENT</param-name>
<param-value>true</param-value>
</context-param>
<context-param>
<param-name>org.omnifaces.FACES_VIEWS_SCAN_PATHS</param-name>
<param-value>/*.xhtml</param-value>
</context-param>
<session-config>
<session-timeout>30</session-timeout>
<tracking-mode>COOKIE</tracking-mode>
</session-config>
</web-app>
pretty-config.xml:
<pretty-config xmlns="http://ocpsoft.org/schema/rewrite-config-prettyfaces"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://ocpsoft.org/schema/rewrite-config-prettyfaces
http://ocpsoft.org/xml/ns/prettyfaces/rewrite-config-prettyfaces.xsd">
<url-mapping id="members">
<pattern value="/member/#{memberId}" />
<view-id value="/member.xhtml" />
</url-mapping>
</pretty-config>
faces-config.xml:
<?xml version="1.0" encoding="UTF-8"?>
<faces-config xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd"
version="2.2">
<application>
<locale-config>
<default-locale>de</default-locale>
</locale-config>
<resource-bundle>
<base-name>messages</base-name>
<var>msg</var>
</resource-bundle>
<resource-handler>org.omnifaces.resourcehandler.UnmappedResourceHandler</resource-handler>
</application>