I have a very similar problem to: https://bugs.documentfoundation.org/show_bug.cgi?id=145963 In the latest versions of LO. The problem showed up in 24.2.1.2. I downgraded to 7.6.x. But that version doesn't perform very well either. I tried various combinations of Skia/Hardware accel/safe mode and none of them made a difference. I downgraded to 7.3.7.2 and that one is VERY snappy. When I open the same file as I did with versions 7.6.X and 24.X, it's almost instantaneous. The big difference I see is that Dark Mode was introduced in 7.4 and I wonder if that is when the problem was introduced. Unfortunately, I don't have the time to check every version of LO to see when the problem started but I figured I would pout this bug here (actually, I was encouraged to do it in the forums) so it's documented. Edition Windows 11 Home Version 23H2 Installed on 2024-03-13 OS build 22631.3880 Serial number PF4LZYJ6 Experience Windows Feature Experience Pack 1000.22700.1020.0
Here is a video that shows the difference in performance between 7.4.7.2 and 7.5.9.2. https://vento.so/view/b695b1da-c17b-4ad0-9d1d-c7ae9a4db659?utm_medium=share I'm using ODS files with the exact same data in it. I'm attaching it to this report. The biggest difference I see between the two cversions is that Dark mod was added in the 7.5 series.
Created attachment 196106 [details] Bogus ODS file used in the video