I manly do replacement parts for my small scale models.
So quality is not important.
What is the fastest speed you have been able to do a successful print with.
1st layer will be slower to get a good grip.
But after that
I would like it to print a bit quicker.
I’ve had pretty good results with the included HQ and Normal profiles in Creality Print at around 300mm/s. I need quality so I don’t try and push speed plus it gets concerning when that thing starts whipping around. 
Cheers for reply.
My spoed no where near up there.
Will knock mine up 100 and see how it comes out