Started a new 6.2 game, large map, all 7 default races on Gifted. I'm on turn 63 and don't know if I can tolerate the pauses that happen so often. Pull up planet display, pause. Close planet display, pause. Pull up tech screen, pause. Close tech screen, pause. Anything I do outside of the main map, it pauses for a second or two. Beta 6.1 did this a little but it was not nearly so bad.
Yes, this is a beta. I'd expect it will be fixed. However, its happening so much I'm not able to get into the game. You'd have to pay me to endure this and I'm certainly not getting paid for my testing services. 
Hmm, reloading my save seems to have eliminated or greatly reduced the pausing/temp freezing. Perhaps I'll play some more.
On a good note, in just my short time with 6.2, the AI seems improved in several areas.