Also if you want to get to the root of the problem, when you install Firefox 51.0.1 in the URL bar type "about:support"
It will list HW acceleration info. You want to make sure electrolysis is running, in the line "Multiprocess Windows: 1/1 (Enabled by user)" should be enabled by default, if it says 0/1 it not active and you will have to manually turn it on.
You can also see if the WebGL renderer is loading properly. On my Debian box it says WebGL2 creation failed (drivers), which would explain my poor performance on that box.
It's worth a shot since Firefox's WebGL rendering is 4x faster then other browsers, it's worth your time taking a quick check.
It will list HW acceleration info. You want to make sure electrolysis is running, in the line "Multiprocess Windows: 1/1 (Enabled by user)" should be enabled by default, if it says 0/1 it not active and you will have to manually turn it on.
You can also see if the WebGL renderer is loading properly. On my Debian box it says WebGL2 creation failed (drivers), which would explain my poor performance on that box.
It's worth a shot since Firefox's WebGL rendering is 4x faster then other browsers, it's worth your time taking a quick check.