Hello everyone,
I’m Wagnard (yes the one from Wagnardsoft, the main developer of DDU).
You guys should give 546.01 a shot, it does fix a cache related bug that affect D4. I was able to see improvement on the issue discussed here. Especially on my case when reloading the game, the cache does seems to work now where prior it seems it was regenerating it.
While the huge pause may still happen (seems to be a D4 issue) the rest of the gameplay experience is better imo.