What is the best 'fastest' way to make a backup of a VM hosted on the DXP4800Plus

I have a approx 68gb win10 VM on a internal SSD and i’m exporting the .ova file to a Very fast internal Nvme drive It took me about 1.5 hours , Is that normal? Is there a better way to back up the .ova ?

I would appreciate any help on this topic please.

Mike