I did some testing by trying to download the same sized files using the same settings but with version 0.39.4 vs 0.44.0. The same 200MB file takes about 5 seconds to decode on v0.39.4 where as the same 200MB file takes about
19 seconds on v0.44.0. As you can see in the bottom screenshot, those long decode times are with no active downloads going - it's only decoding. The tests were, of course, done on the same machine.
Any help/suggestions would be appreciated.
Here's the screenshot: