Laser etching speed is same at 2 or 98 %

i have ran tests and the etching speed of laser print movements when set to black and white is always the same have tried flashing firmware cant get that to work, ever since update of u arm studio. this was not an isse only days ago, will a reset fix this issue or is it uarm studio that is the issue?

Sorry for the problem. We’ll test that next Monday.
Will let you know when we fix the issue.