[Delta Standalone] optimisticTransaction.commit - poor performance

[VladimirPchelko]

I'm trying to use this library to write to a table from an AWS lambda - but unfortunately, by default, the jar-package size becomes too large - I managed to sole this ...

but faced with another problem (show-stopper), optimisticTransaction.commit time to the table is unacceptable high - 30-60 seconds for a blind-append operation.