psalm takes exactly the same amount of time whether running it normally or with --no-cache
While the first run should take the same amount of time for both, any repeated runs (no changes were done to the file) should be much faster with cache enabled.

The cache is generated correctly (I see how it generates it in .cache/psalm).

I run psalm for a single file only. Same issue though, when I run it for multiple files at once.

Psalm 4.10.0