So I was able to fix it, it had nothing to do with my slightly bigger wheels its only from stock 17 zoll to 18 zoll and still the same size tyres.
I used a dumpeditor and in there was a setting for GPS speed.
So tool said "...100km/h per GPS" and I could enter a value, the default was 105. After I entered the default value of 105 and did the VCDS
speedometer testing it went from 0 to 260 instead of the full 300 same for when it should it 100 mark it hit like 90~.
Then I changed the value from 105 to 90 and now it is working. VCDS test is perfect on the 100 mark and the 300.
Thanks for the help, it was pretty simple