You have absolutely no events that run every tick, or just no events where you use the condition system every tick?
Not that that would normally interfere, unless one of them has actions attached that conflict with the dragging..
Does the sprite you are dragging have any (other) movement behaviours attached, or are there events with actions setting it's position that could be conflicting/interfering?
Using multiple event-sheets and/or many events shouldn't have effect..
I guess the only reason the VM would have any effect is if it's somehow reducing framerate, or hasn't got enough memory/cpu/gpu assigned..
Did you check your framerate and (image) memory usage and cpu usage (using the debugger)?