It really comes down to the USB version you're using. A $5 USB 3.0 with 16GB storage might not be very fast, but quicker options like 64/128GB Sandisk Extreme Pros work well with WinPE and aren't slow at all.
It really comes down to the USB version you're using. A $5 USB 3.0 with 16GB storage might not be very fast, but quicker options like 64/128GB Sandisk Extreme Pros work well with WinPE and aren't slow at all.