Rough and overly rounded edges.

So far my setup is: VCore 3.1 500, Speed ​​120mm/s, Acceleration 3500mm/s the y-axis is too heavy and the input shaper shows that my accelerations should be around 4500 . I understand that this part is too small for such a printer, and I also understand that I probably do not have enough acceleration. Nozzle 0.8mm, Hotend Rapido UHF . Trying to just fix problems with the mechanics and raise acceleration? PA is tunned , i see perfect value at 0.05 Extruder is tuned too.