Calc is loading massive file in the .tmp files directory - called ‘markup’ files, (870Mb to 1.6Gig). Calc spreadsheet loading, copy, paste, and saving is very slow on my spreadsheet of 400000 rows. It used too take 10 minutes to save but latest save took 45 minutes. I’ve paste in a change to 5000 rows of records. When I Save the changed data these markup files appear.
Buggy too, i’m watching it in System Monitor. The buggy bit is Saving and then closing. I’ve had to reload and Save again, and then do the load and Save yet again to get Calc to clear all these so called temporary files from the temp file path.
It’s not as though you could go to Write to get on with another task while you’re spreadsheet is saving - because while the spreadsheet is Saving the whole libreOffice program is locked.