Last I tried desktop Excel on my 20 core machine, it felt much snappier than Calc ever did. Shame on me for expecting a spreadsheet app to run as melted butter on a i9 10900k.
To be fair, the word processor is the one that has annoying writing latency. My issue with Calc it is clunky to use, and not very HiDPI friendly.
Core eye five here... never have had to wait for input. Takes a second or so to start. Any better and I wouldn't be able to perceive it.
No HiDPI problems, perhaps a new icon theme?
I'm sure Excel is better on many metrics due to investment, and if you are a spreadsheet-jockey that last 5% really matters. But, neither a factor here.
To be fair, the word processor is the one that has annoying writing latency. My issue with Calc it is clunky to use, and not very HiDPI friendly.