Improve performance of paws build functions

[DyfanJones]

Helper paws build functions

[codecov[bot]]

Codecov Report

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

Comparison is base (b808ad3) 84.84% compared to head (e8ebdee) 84.84%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #744 +/- ## ========================================= Coverage 84.84% 84.84% ========================================= Files 136 204 +68 Lines 9885 14836 +4951 ========================================= + Hits 8387 12588 +4201 - Misses 1498 2248 +750 ```

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