Different X acceleration based on Y value

[i-make-robots]

Is your feature request related to a problem? Please describe.
as the pen gets further down, the belts have less control over the sway. Adaptively adjust the X acceleration. The goal is to increase overall acceleration while preserving drawing quality.

Describe the solution you'd like
A change in the firmware. set the top and bottom acceleration, let the plotter do the rest.

Describe alternatives you've considered
Adding an acceleration command after every few gcode commands.

Additional context
Add any other context or screenshots about the feature request here.