Would be cool if we could have the outmost wall print at constant speed across the whole print and not slow down even if we are below the minimum layer time and compensate by slowing down infill and the inner walls even more.
Orca slicer example where this feature already exists, in the Filament → Cooling.
Same settings, Bambu Studio
This would prevent different finishes across the heights 
I would like to see this feature added as well.
Gonna add my name to this, the work-around of manually halving the external wall speed when the problem is spotted in the preview is a pain.
+1 here.
This is just one out of many simple functions missing…
+1
Definetly need this feature in BambuStudio!
+1
New ‘Smoothing wall speed along Z’ is not bad but it still results in different print finish, just more gradual.
+1 here
Definetly need this
This feature really deserves more attention!
Please @BambuLab can you get this added into the next update?
Yes please! This is critical for silks. and now that you have to jump thru hoops to use Orca, be nice if Bambu would expose that option.
