If I were you, I'd wait for a reply from one in the Spybot team. Moreover, if you are dissatisfied, you can disable Teatimer by going into Spybot - Mode - Advanced Mode - Tools - Resident.

Keep in mind the version 2 is in beta mode, which means it's not many months before a public version will be released. Hopefully in the new version the memory usage is lower, even though I doubt you will notice a difference.