Rekordbox 7.1 on Windows constantly exits whilst analysing tracks

So far it's taken nearly 5 solid days, 24 hours per day to analyse about 44k tracks as this is my first experience with Rekordbox as a long time Traktor user

The software, without fail, will just exit randomly whilst analysing tracks - I've no idea why - it doesn't crash, it just exits completely. Or often locks up too and becomes unresponsive

This is on a Windows 10 PC with high-spec Intel CPU and 32GB ram, with tracks & collection on external SSD

Can anyone advise? This software is absolute garbage compared to Traktor, I mean 5 days to analyse tracks FFS, and constant instability - why is it so slow?? I'm running in Export mode with Performance analysis on so its using multiple cores and yet is taking literally forever