Speed up OPERA

Opera:

Increasing total connections

* Type about:config in the address bar
* Enter connections into the search field
* Change the value of Max Connections Total from 20 to any value between 32 to 65
* Do not change the Max Connections per Server
* After you are done with the above just save the settings and restart browser

Name completion and local network machine

* Go to Tools> Preferences> Advanced> Network(or click Control and F12 same time)
* Select Server name completion
* Now you have two options within it.
"Look For local network machine"
"Try name completion"
* If you uncheck both of the above options, i.e.; Try name completion and Look for local network machine, Opera will stop cycling your CPU, trying to guess what you’re typing in the address bar
* Restart the browser after applying the settings. You’ll see the speed difference

Reduce the amount of visited pages in history

* Go to Tools> Preferences> Advanced> History (or click Control and F12 same time)
* Reduce addresses to 100 instead of 500 by default

Opera loading

* Go to Tools> Preferences> Advanced> Browsing> (or click Control and F12 same time)
* In the loading window choose "Redraw Instantly"

Tooltips

* Go to Tools> Preferences> Advanced> (or click Control and F12 same time)
* Uncheck "Tooltips"