I have a MacBook Pro 13" MY2018 with 8 GB Ram (non-dedicated video card). That's not a high end machine but I don't think it's dated either :)

While rehearsing a DJ set with Serato video on a (non-HD!) video with Serato Pitch'n'Time active suddenly I experienced lower audio quality, a bit later even audio drop outs. The Serato UI became extremely slow unresponsive. I loaded two audio-only tracks in the decks but that didn't help.

In Activity Monitor I saw that Serato took > 50 % CPU time and the only way to solve it was to kill the Serato process and restart Serato.

I have to note that I tried to mix the same two (non-HD) videos maybe 15 times before (rehearsing to make the ultimate blend) without any issues.

Is there anything I can do to optimize my Serato video settings? I have a video DJ gig at a party with > 300 people next week and if something like this happens during the gig, I'm dead!