Attacks queueing issue

Playing on steam deck makes my attacks queue up for some reason.
The higher my attack speed goes, the more attacks queue up with just one quick button press. Tried this with several skills (e.g. earthquake, bladestorm, leap slam), with different buttons, different settings - results are always the same; with 1 button press;
- at my default attack speed, I attack once
- with a couple of frenzy charges and challenger charges, I attack twice
- with a lot of buffs and charges going on, I attack three times

Also tested on my PC with the same build, with the same cases, while connected to the same Wifi and this problem never occurred, not even once.

Not sure if the issue is somehow related to controller in general or only steam deck specifically.