Why do we dogfood? So you don't have to!
Our Platinum Benefactors have been looking over the 4.5.0 feature set and release candidates with us and provided some excellent feedback. As of RC2, some of them are also doing what we're doing... subjecting 4.5.0 to real-life, honest-to-God, significant volume, scale & load. Guess what? We found a bug!
The good news is that we know what it is and although high-impact, is low effort to resolve. The short answer is really as simple as a frequent DB call that is not being cached properly. Naturally, this will be remedied before we release. The updates will be applied to www.dotnentuke.com sometime tonight and appear in the next RC as quickly as possible.
In the meantime... we apologize for your experience interacting with a sluggish site today... but take it easy on us... we do this for you!
Cheers