Saying something using as a basis your two hours experience isn't really trustable. I used to spin faster with mouse than I do with tablet, and I think the fastest spinners around there are done by mouse players, and I think that one month playing with mouse and almost two months of playing with a tablet are a more worthy experience than some hours of tablet. Maybe you didn't notice something at all, but after some hours of playing with a tablet you already somehow reach your mouse level, it isn't like by playing for a week you become godlike when compared to mouse. When I first got my tablet I was playing like one hour a day, and three days after I got my tablet it was already as comfortable as my mouse, afterwards there wasn't any epicly fast progress. You'd know that if you played osu! with a tablet for an extended period of time.