I read about this bug but i agree with JONNIN; only my first load is about 10 sec, then it need just few seconds (less than 5). So it's not general.
I don't know if it helps but these are my spec:
Windows 7 64 bit
intel i5 760
HDD 7200 RPM 1TB
Radeon HD 6750
Drivers are upgraded.
As you can see my pc is pretty old.