Increase World Processor worker to 36
Due to the nature of how Mindustry display works, you would need your game to run a minimum of 200fps for this to look smooth, there's nothing i can do to get around this other than lowering the resolution (smaller displays) or lowering the frame rate of the Bad apple.
On mobile your game fps might be limited to your phone display refresh rate. which to my knowledge, can't be disabled without modifying your game. in which case, you might want to try using the Time Control mod along with modifying a number in the code of the World Processor above the switch at line 19:
This one:
At 60 FPS:
- Time control mod : x1/4
- Code: from
33.33to100
At 120 FPS:
- Time control mod: x1/2
- Code: from
33.33to66.66
This will make the video run slower but should give clean frames.
Otherwise use the desktop version of Mindustry if possible.