perf: cache fs calls for modern API

[alexander-akait]

Summary

cache fs calls - fixes #1283

What kind of change does this PR introduce?

bugfix

Did you add tests for your changes?

Existing

Does this PR introduce a breaking change?

No

If relevant, what needs to be documented once your changes are merged or what have you already documented?

Nothing

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.13%. Comparing base (900a5f8) to head (8f204a0).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1284   +/-   ##
=======================================
  Coverage   94.13%   94.13%           
=======================================
  Files           3        3           
  Lines         409      409           
  Branches      152      154    +2     
=======================================
  Hits          385      385           
  Misses         22       22           
  Partials        2        2           

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