Even with Defender etc off, it is not fun. Lots of small file IO brings it on its knees. Some wants to blame the Windows I/O system, I don't know, but what I do know is that when people choose NTFS it is because they haven't an alternative. Nobody chooses it based on its quality attributes. I dare to say there is no NTFS system that is faster than an EXT4 system.

If even MS internal teams rather want to avoid it, it seems like it isn't a great offering. https://news.ycombinator.com/item?id=41085376#41086062