I just started using AC15 (Win 7 64 bit, 12G RAM). I opened a project that was done in AC14 (64bit) and I find that AC15 takes an extremely long time to open the project and even longer to change the stories (> 20 mins)
There is a lot of disk activity and the memory usage hits 99%.
The same project is ok on AC14.
I have read a lots of posts on issues with AC15 but no one else appears to have this issue. What am I doing wrong?