I have a magic trackpad 2 (maybe 3, not sure) and haven’t noticed any lagging issues. I mainly use it wired, but the times I did use it wirelessly I didn’t notice any lag either.
Unfortunately I didn’t have gestures ootb, though that could be a KDE plasma thing, since they have touchpad gestures like two finger scroll and tap to click disabled by default as well.
Setting up gestures using touchegg was easy enough though.