Improved kron performance

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (ae8d5ef) 84.98% compared to head (5639192) 84.98%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #105 +/- ## ======================================= Coverage 84.98% 84.98% ======================================= Files 68 68 Lines 87709 87709 ======================================= + Hits 74537 74541 +4 + Misses 13172 13168 -4 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[sarah-ek]

lgtm!