Rotax 914 with electric CS prop

I have a 914 with MT constant speed prop electric (which is a bit slow).   When I do my static run up checks at full 115% power, the revs sometimes just exceed 5800, say 5880 (on FlyDat and dial rev counter) for a few seconds until the prop controller takes charge, inreases pitch and reduces the revs to around 5600-5700.   But, if I try to remove this I will have to adjust the prop low pitch stop so that the low (takeoff) pitch is too high to allow 5800 to be reached in the cimb, so limiting climb performance.    I have checked both rev counters and they are accurate.   The engine is fine and all temps well within limits, but of course I get "Service" on the Flydat.

Does this matter?; any advice / experience please?