I hear you on that. To address that in the past I have tried to create a brand new TM backup as I wondered in the past if the file systems were causing issues, as I have had those slowdowns in the past.Thanks for your suggestion and I will look into it but I need Time Machine to be on all the time while I'm working. If something drastic were to happen during my working day (sudden HD failure, which I have experienced a few times), I could lose several hours of work. That's not an appealing option for me. I think the problem that has to be fixed is in Ventura, which ultimately only Apple can solve.
I'm also paranoid about data loss - not sure what you are working on, but I work on all my files directly within Dropbox - even Final Cut libraries. Its hard on my internet, but then I feel like my office can explode and I'll be ok. And then I follow that up with a TM backup too.