These are my settings, I think I’m pretty close to the limit - I think I turned them down from 5000mm/m but to be honest, I think that could even be wrong. I’ve had a bit of a nightmare cutting sheets this week - it’s been 28-32 degrees, so I’m not sure if that’s coming into play. Table is also a mess, and I think my belt tension has gone. The SKR is also playing up, but I did cut 30+ sheets at 5000mm/m - I do wonder if it’s true 5000mm/m as I’m only really cutting curves.
The bit I use is a cheap 3.18mm two flute straight cut, I found the upcut bits tend to pull the entire sheet up, the two flute leaves the sheet in place (to an extent) and I clean up the edges on a lathe afterwards - the edges are not very tidy at all.
I think to get cleaner edges I could slow it down, and maybe dial back the spindle speed.