Slowdown working with large sequences

I'm trying to arrange a song and have created 32 bar sequences to work through the editing of each section. For some tracks (particularly busy drum tracks), I get a massive slow down, almost unusable lag on the touch screen. Anyone else get this? Oddly not seeing CPU spikes but I think the issue only occurs on grid edit mode, so it's hard to tell.

i find in software mode if im routing my pads to my daw if i use the xy/fx it all comes apart and glitches and screen update chugs is main time it happens for me

I'm pretty sure I've run into it too. Editing velocity is a pain and it lags a lot.

Sounds like a bug, file a bug report. Can you reproduce it with another large sequence?