.htaccess

# Put filters
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-httpd-fastphp
AddOutputFilterByType DEFLATE image/svg+xml

# Drop some browsers which can create problem.
BrowserMatch ^Mozilla/4 gzip-only-text/html
BrowserMatch ^Mozilla/4\.0[678] no-gzip
BrowserMatch \bMSI[E] !no-gzip !gzip-only-text/html

<filesMatch ".(ico|pdf|jpg|jpeg|png|svg|webp|gif|js|css)$">
    Header set Cache-Control "max-age=604800, public"
</filesMatch>

# Make sure proxies don't deliver the wrong content
Header append Vary User-Agent env=!dont-vary

#Options +FollowSymLinks
RewriteEngine On

RewriteBase /

RewriteCond %{THE_REQUEST} \?\S+
RewriteRule ^/?$ %{QUERY_STRING}? [L]

# now convert all & to /
RewriteRule ^([^&]+)&(.*)$ $1/$2 [L]

# now convert all = to /
RewriteRule ^([^=]+)=([^=]+=.*)$ $1-$2 [L]
RewriteRule ^([^=]+)=([^=]+)$ $1-$2 [L,R=308]

# finally an internal rule to replace /n1/v1/n2/v2 to QUERY_STRING
RewriteRule "^([^/]+)-([^/]*)(?:/(.*))?$" $3?$1=$2 [L,QSA]

## Your existing stuff followed now
RewriteRule ^index\.php$ - [L,R=308]

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . index.php [L]