## Link to GitHub Issue, if one exists
n/a
## Description of change
`acmFormatSuggest` is known to cause significant perf issues on Linux;
add a hook to return cached results.
The fix is only active in the Linux variant.
For discussion, see
* https://codeberg.org/nixac/spicetools/issues/2
* https://codeberg.org/nixac/spicetools/issues/4
## Testing
I've only tested this on Windows, checking if iidx and popn can boot,
play songs without audio issues.
bicarus-dev