Optimize Chrome and other

Found some settings that I think made my Chrome browser a little bit faster.

Starting Chrome with --process-per-site. GPU rasterization is enabled. Also memory saver is activated.

Also if you know any other optimization is welcome. Have started running Spotify in browser instead of the client and it seems saving some ram.

The usual:
• disable all AI
• turn off any handy but useless settings
• disable any 'Help make Chrome better' kind of stuff
• half a dozen flags, or so
• use as few extensions as possible