Muse Score 4.0.1 extremely slow in playback and operation.
S2 - Critical
When using MuseScore 4.0.1 is impossible to write even a small score. For example, on Sibelius Ultimate it needs only 8% of the CPU to play a piece that needs over 60% of the CPU to play in MuseScore! It's a pity, because I like MuseScore better than Sibelius and Finale alike, but I have to say that in functionality Sibelius is still year ahead. Unfortunately.