Good old days.. C1 20 ?

C1 Doesn't work like it used too! 

Maybe it has to do with Mac's new chip? 21.> is confused.. 

Capture One was running very well before moving to 21 But M1's were not available for 20 

Opinion - 21 may be based too much around phase products XT etc, and degenerating features that were smoothly operating for other technical camera users.