[Waldbaer]

I know this problem and experience it from time to time, too, though it has not driven me nuts until now (also on Surface pro 4 i5). MobileSheets' annotations are sometimes considerably slower than working in other apps (the mentioned ones, or I still use Xodo a lot). When this happens, it seems to me as if MSP slightly hangs and then tries to guess how one might have come there where it finds the pen tip once it wakes up, instead of constantly tracking it. I'm interested if there are different ways for software to fetch the pen's input... I'm just guessing, but it feels a bit like software vs. hardware rendering. Any idea about this? I just fear that this one is not that easy to solve but might need a serious rework... 

Does anybody here have a newer or older surface and experience similar problems?