Thank you for your feedback.
I must say that I, and the team behind me agree with you. We are definitely thinking on improving the performance in all areas, in this case in the backend as well. As for the bugs, most of the things are already on the radar.
Thank you once again and.. you should see improvements on those on daily basis :).
Is this going to be fixed in SP2 or will be waiting until SP3?
We are currently testing solution that should increase the performance. Q1 will bring all performance optimizations that we were working on in the last couple of weeks.