Photos on NAS very slow

[LaurentP]

Hello, I just imported a folder that is located on my Nas with more than 10,000 photos, the import works correctly.
On the other hand, when I want to display the thumbnails of the photos, it is very very slow and I get stuck on the spinning wheel, is there a way to preload the thumbnails to have faster access (I assume that the slowdown comes from there, since the thumbnails take a long time to appear in the browser)?
Thanks.

[Shelton]

Building 10000 thumbnails I would expect to be slow first time with any software as it builds them, but off a NAS is going to be incredibly slow! I wouldn't work directly from a NAS whatever software I was using personally.....

Shelton.