Unspecified slowness complaint

Hello, I have been having performance issues with Lightroom Classic for a few months but I thought it was due to my old iMac needing more power. I just finished doing my transition to a new Mac mini with Mac Studio screen. It has the Mac MP4Pro chip and is loaded in terms of cores, memory etc. Unfortunately I still have the slow issue. I keep having to optimise my catalog to gain some responsiveness but it's not functional. I downloaded the Lightroom Classic version directly from the Adobe website. so I would not carry over potential issues. Does anyone have a similar situation and what can be done to fix this problem. I have a friend professional photographer with the exact same machine and she does not have this issue.

To provide more information I'm on Apple Tahoe 26,2, M4 Pro chip, 14 cores, 20 graphic processor and 16 cores neural engine. I have 64 g of unified memory and my lightroom library sits on an SSD external disk of 4 tb. My catalogue is on my iMac.