Thanks for the info SFSW!
I made a quick test code where 200 small sprites move from right to left with random position looped with one still background image. One OGG track plays in the background, and every time a pointer (screen, mouse) get pressed an explosion and a laser firing wav sound plays. I exported to Android with AppGameKit 2020.11.16 version.
I installed it on a LG K4
1.1 Ghz Quad Core Cortex A7 - Adreno 304 with Android 5.1.1
on it. Everything was smooth, virtually no frame drop even with very fast tapping on the screen.
Installed the same test code on a HUAWEI Mate 20 Pro
Octa-core (2x2.6 GHz Cortex-A76 & 2x1.92 GHz Cortex-A76 & 4x1.8 GHz Cortex-A55 - Mali-G76 MP10 - Android 10
Scrolling is smooth with background music only. Every time I tapped the screen all sprite movement froze for like 250ms. If it was a game of course it would be unplayable. I didn't experience this exact severe frame rate stuttering with AppGameKit on Android before because I only tested on my old LG where this issue seems not to be present.
Looks like something has changed in Android the way it handles audio? Maybe it has to do something with the audio-focus function of Android? Don't know, but maybe fixing this is not such a big task on TGC's side...and maybe Paul could try to do something before Lee chains him to a desk and forces him to pump out GameGuru MAX code.