Loftus00

I have a 2002 b5 s4 and just got my stage 1 tune from apr. All I have done is intake and the tune. It is tiptronic. It seems as if it upshifts more roughly and also like almost lags when it upshifts gears way more then in stock mode (it is tuned at 93 as of now). Another thing I also noticed is that it seems like from when I put it to the floor it really pulls and then once it hits around 4500rpms it almost seems as if its leaking boost and declines in power was just wondering if I could have a boost leak and where would be some good places to check! Thanks for the help just makes me sick thinking I just threw 600 dollars away on something that's not working right