I use Adobe Indesign a lot. Whenever I run it now - this is a new issue - Avast suddenly uses all remaining CPU. Indesign uses say 35%. Avast Software Analyzer uses 16-20%. Avast Service uses 15-20% and the remaining avast services use all the remaining CPU. If I close Indesign, avast total usage drops to around 5%. I literally can’t use my PC when I run Indesign now because Avast maxes it out.
As you have Avast One they have their own sub forum so best to post there