HyperHQ was freezing up on me today, so I did a fresh install. Now, when selecting systems in HyperHQ, there seems to be lag when switching between them. Not stuck on "Processing Preparing to start matching process".
Atari 2600, 5200, and 7800 themes worked fine for me on HyperHq v2.0.54 . I installed Retroarch through HyperHQ. Try deleting your Hyperspin and HyperHQ files inside your user AppData folders.
HyperSpin v2.0.36.0 now loads significantly faster. It now takes 21 seconds to load MAME(Complete Set); it was taking approximately 1.5 minutes to load MAME on Hyperspin v2.0.34.0.