The settings (including the acceleration) may have been valid for the original, pristine, hand-tuned factory prototype, back in the day.
At least it worked for them!
Hard agree!
The myriad horror stories around here suggest those original settings have been cargo-culted through multiple unrelated sellers to different hardware variants carrying ever-heavier laser heads. By now, the values are totally invalid for what actually gets assembled on the customer’s kitchen table.
Heck, folks sometimes find CNC-configured GRBL on their shiny new lasers. Doing something like changing the acceleration to match the actual hardware seems reasonable.
Look at the symptoms, assume nothing, and solve the problem from first principles …