To increase the speed of the site there are several possibilities:
- ENABLE CAMPRESSION : Compressing resources with gzip or deflate can reduce the number of bytes sent over the network. Please ask to your server provider to able the gzip on your server. More info here.
- OPTIMIZE IMAGES : The image can be optimized to reduce their filesize without significantly impacting their visual quality. More info here.
- MINIFY CSS : As before minimization refers to the process of compress a file. CSS Compressor here.
- CACHE : Plugin for cache improves the user experience of your site by increasing server performance, reducing the download times and providing transparent content delivery network (CDN) integration. You can try different plugin for it e.g. W3 Total Cache here.