Suspend thumbnail-building when opening files in view mode

[mostly harmless]

Another thing I noticed regarding responsiveness with XnView is that building thumbnails when opening a folder takes a lot of CPU power and while that is progressing XnView reacts very slowly.

This is mostly an issue if there are movie files in the folder.
Therefore I don`t use XnView for movies anymore.

When opening a picture file (so I`m not looking at the browser anymore) the thumbnail-building is still slowing everything down a lot.
It would be desirable the the thumbnail-building process is limited in CPU usage or paused when the user opens individual picture files.

[xnview]

Thanks for all your posts

When you open a picture from browser, the thumbnail creation is not stopped??

[mostly harmless]

It looks like when a picture is opened the thumbnail creation goes on.
I`m seeing a progress bar progressing in the lower right corner. I think that indicates the thumbnail building.

What gets on my nerve is the bad responsiveness but maybe that is not XnView`s fault because:

I just checked for the exact behavior by opening a folder with quite a few movies and some pictures.
And the first time I opened it, XnView didn`t react to any of my clicks for maybe 30-60 seconds. Then the clicked picture was opened.
The progress bar continued but XnView now reacted without delay.
Even when I got back to the browser I could then navigate normally despite thumbnail building was going on.

I`m not sure why that is.

I think there is a good chance that the use of virtual memory might be responsible.
I sometimes have long delays in Windows Explorer and other file managers when opening folders with many subfolders and files.