Could you please say what you mean with long load time? Edit: Sorry, got it 10-20 min.
I’ve tested it on 4 different drives, from hdd to nvme ssd.
The difference between sata ssd and nvme ssd are only few seconds and between fast nvme ssd and very fast nvme ssd are really really low. So it doesn’t scale that much at some point.
If you say it takes 1+ minute on your system with ssd it could be cpu or ram. What CPU and how much RAM you have?