[Linux] Slow formula calculation when handling large amounts of data

Bug Report
Operating System: Ubuntu 25.04
installation Source: Snap Store
App Version:** 8.3.3.21 (Snap)

The cell calculations are extremely slow in a spreadsheet containing large amounts of data and formulas. It appears that the system recalculates every time new data is entered. Additionally, the startup loading time is very slow.

Hello @Fabio,
Please provide an example file that can be used to reproduce the issue mentioned above

I am attaching the demonstration file as requested. Sorry for the delay.

Please provide the file used in the reproduction as well - for testing purposes