I think you should be considering ‘cutting speed’ (ie the speed at which the surface is passing the abrasive) rather than the rotational speed - although the latter is the easy one the think of as it is the one which we set with either the belts or potentiometer (Variable speed control).
For ‘sanding’ I usually reduce the rotational/surface speed to half that which I was using whilst using tools - and have never had any problems with mesh abrasives.
I always either fold the mesh in half or put it on a backing pad, depending on the surface detail to be sanded - and regularly check that it dust is escaping. Such pacing pads include propriety sanding pads of various hardness, a thin perforated sponge pad, and pads I make from other ‘Velcro’ backing (eg on a stalk to get deep into a hollow form).
I do get clogging when there is a finish on the surface being sanded - but that will happen with any abrasive, not just mesh.
My problem with mesh abrasive is that it lasts so long that I forget to check that it is still effective and often use it well beyond its sell by date, when it really isn’t being effective.