Problem:
A conformity check is building two separate lists, consisting of the valid and invalid records, with a max total sum of the length of the input, which is becoming prohibitively slower after ~30 thousand records.
This holds true for a validation check, as under the hood it performs a conformity check and matches the result.

Proposal:
Optimise the validation check to not keep temporary results, while replicating the conformity check patterns. As an extra bonus (for multiple checks performed under a single validation) the validation stops once any check fails.