On Windows, if I use a simple programme like RTSS to cap the FPS on my app at 60, the microstutter disappears.
I really hope that this is something Corona staff can look at-- it’s not an issue with the developers’ apps but with the engine and suggesting that Corona is now open source and the community should fix this is not something that induces a lot of confidence for a developer who probably uses Corona because of how it’s advertised as a beginner-friendly framework.
I don’t use Corona because it’s open source but because it allows me to focus on designing my game and am willing to purchase whatever subscription/ license that’s necessary if that means that I can expect that these fairly serious issues with the engine will not be ignored.
Basically, desktop apps that have any sort of constant motion of objects are downright impossible to build with Corona.