Hi @Stuart_Dudman,
We will certainly take a closer look! I also want to confirm, are these the same issues you’ve been experiencing since 2018, per your older thread below:
When shuffling Roon halts when it encounters a Tidal track - #12 by dylan.
How many tags are you currently using, across roughly how many tracks?
How long is your play history? If you erase your play history, does that help with performance? Again please make a fresh backup if you’d like to keep your play history. You can then restore from a backup afterwards if there is no change in performance.