Thumbnails load slowly in Explorer

Hi, have you done any research on this? A general search for
thumbnails load slowly
suggests e.g.
How to Speed Up a Windows Folder that Loads Very Slowly

But there are so many factors: how large a file is each image: where are the files located: what is the speed of access to that location: what else is the PC doing at the same time..... (check your task manager).

Another angle:
When Windows 10 thumbnails seem to be missing or slow to load, try this | PCWorld

Please also feel free to search the forum.

Note: forum rules prohibit thread bumping... thanks.