Tacx Neo 2T with Elite Rizer

Hi all, I have the neo 2t and the rizer. I have machined the drive side etc and have it working perfectly that way. However I have an issue with the it when I go from steady power then put an effort in (say 100watts more) the rizer lifts up like I was going up a hill. If I drop power it drops down. Is this normal or do I need to change settings??