Very slow download speed

Hi, I am switching my old stable Kodi 14.2 OpenELEC NUC boxes to current LibreELEC versions.

Using the USB creator on Win10, I selected generic and the 7.0.2 image, I clicked download, nothing seemed to happen, the cancel button was on, after about 15s the speed was reported as 461s left.
I started a direct download of the same image using Chrome, that completed in 14s, and I cancelled the download via the USB tool.

I repeated the operations twice, first time I cancelled after about 30s of no activity, second time it took about a minute to start the download, then the download completed fast.

There appears to be a problem with the tool's image download performance, at least the time it takes to start the download.

I'm sure it works fine most of the time, else it would not be released

This is a vanilla Win10 Pro x64 Insider Fast ring, with no 3rd party AV installed.
And it repeatedly takes near a minute to get the download going, once it goes it is fast.

Is there a way to get a log file created by the tool, or should I look at the source code?

Ok, looks like the directory open and initial file create takes a very long time.
Changing to a different directory, no problem.
Cleaning out my download folder, and trying again, no problem.
I suspect it had something to do with the OS and the directory contents.