This is not in particular with rcl macro engine. But for better gaming experience its always better to disable windows mouse acceleration.
Mouse acceleration will cause unnecessary mouse acceleration lag and also its a hard hit on developing muscle memory as there wont be any 1:1 input
RCL Macro Engine is a powerful no recoil engine which can be used to make no recoil scripts for any game without touching a single line of code. You can request us for a specific game through contact form.