Android: Add option to toggle "Sustained Performance Mode"

[ChrisNZL]

Currently 0.3.6c, the game has Unity's SetSustainedPerformanceMode set to true, configured in the Editor's Project Settings > Player > Android Other Settings section.

It seems this option can be toggled @ runtime.

Have had a report where the game gets slower and slower, and eventually freezing... Kind of wonder if it's this option causing issues.

Tasks

• [x] Add option to toggle "Sustained Performance Mode"
  • Probably have the option be disabled by default

This is an Android-specific option.

Unity forum thread: Anyone released with Sustained Performance Mode enabled?

I suggest NOT to use Sustained Performance Mode when building for VR devices , where even a 10-15 FPS drop can be annoying. In my tests, the average framerate was about 15-20 FPS lower than the maximum supported by the headsets.

[ChrisNZL]

0.3.7:

• Added new option on Android: Advanced > High Performance
  • If enabled, makes Android's "Sustained Performance Mode" be set to false.
  • If disabled, makes Android's "Sustained Performance Mode" be set to true.

High Performance is enabled by default.