analogtv new version doesn't work?

I am trying to switch to vdr 1.3.12 from 1.2.6. When using 1.2.6 I had no problems with analogtv, sync was ok, tuning was fast, no distortions etc. I was using 0.9.20. Now trying to switch to 0.9.35, becuase 0.9.20 dowsn't compile with 1.3.12 I experience distortions, hacking and such. The terminal says that it reaches over 100% CPU alot in the beginning when tuning to a channel. That never happened before, and under that time (it lowers to 100%) image distortions are huge. But even after that pixelations and distortions and hacks is visible sometimes. What has happened and how can I fix it?