Multitouch drops around 10 fps

Hi, thank you for your help on this forum! I faced a weird issue on mobile devices, namely Samsung Galaxy A04, but it is noticed on iOS too. So my game is running on that Samsung on 38 fps when nothing is going on. When I put one finger on the screen, fps drops to around 30-32, and keeps aroung that number until I release the finger. When I put two fingers at once, fps drops to 25-26, and keeps being so untill I release. When testing that, I disabled all touch handlers within the game. Unfortunately, I cannot share a demo link, as this project is under NDA. Please, help me figure out what might be the issue!