Frame rate variations with slow computers and music enabled

[Almenon]

With music enabled sometimes the FPS drops down to 30. Although 30 isn't terrible, the difference in framerate is jarring. Either I need to somehow lock FPS to 30 on slow devices or I need to increase performance.

[Almenon]

Javascript operates in single thread so doing CPU operations at same time as rendering canvas is expensive.

todo:

• analyze performance
• look up phaser tips on increasing performance

pie-in-the-sky:
use assemblyscript