I’ve the same issue after adding a tempered glass. But it seems there’s no opportunity to set the sensitivity. Maybe it makes sense to change the tempered glass for a thinner one?
I’m using a .3mm tempered glass one, (5usd, incl shipping, perfect quality, nice slippery oleophobic coating) Too bad it affects the screens sensitivity. Typing is suffering the most. Without it, the tablet works like a charm!