Hi, it takes me quite a long time to download the Watt OS iso file.  I like it very much.  At the beginning, time shown in my computer is not correct. I use this command:
1) sudo passwd root
2) sudo su
3) sudo date --set 12/27/2022
(Month/Date/Year)
it fixed my local time.
After I tried the Watt OS for months,  I installed it on my hard disk. 
Moreover, I use ventoy, I copied four iso into my USB stick, including Enso Linux, Watt OS, Pardus Linux, and Vanilla Linux.
After installed Watt OS on my hard disk.  I used Gpart, make a cut onto my harddisk, and format  the new partition as NTFS.
It did not affect my Watt OS.
All downloaded files were stored into my newly created partition in NTFS format.

When coping files, always bear in mind:  the coping speed in USB2 is very slow, the coping speed in USB3 is very fast.
If the Colour shown in the USB is black, it is USB2.
If the Colour shown in the USB is Blue, it is USB3.

Always wait a bit longer, be patient when coping files.  Or else the files copied will be corrupted.