Availability and performance issues of VTT on tablets

Hey there.

I've got two tablets to play. One is a player map for players (ipad 2021, browsers Safari, Chrome, Firefox). The other is for me=DM(huawei matepad 11.5s 2026, browser Firefox, Chrome, inner huawei browser). All browsers have max rights on OS they ask. Some issues i met:

* on all tablets firefox freezes on fullscreen button, especially when in combat

* on all tablets chrome randomly gives whitescreen, especially when i use fullscreen button during combat and move tokens or open statblock within them

* safari randomly freezes when it roll dice (maybe already not) but still freezing on full screen

* huawei browser works ok on full screen but cannot add or view tokens - JavaScript enabled This was fixed (prepared adventure last night and tested)

* on all tablets browsers cannot hide their upper part and i cant see bottom text of monsters abilities (2 lowest strings). They hide part on other sites when i scroll down.