slow scrolling in folders with many sub-folders

[Roger Knutsen]

Is is just me?

I'm experiencing hick-ups when scrolling up and down in folders with 100+ elements. I often have folders with 200-600 sub-folders. The scrolling kinda stops and starts again - almost like jumping up and down. 

In Windows Explorer I don't experience that scrolling behaviour. It would be cool to hear if it happens to anyone else, because I don't blame the program just yet - it might be my system :p

[John Durso]

The only folder I'm aware of on my system that has 600+ folders/items is the C:\Windows\System32\config\systemprofile\AppData\Local\ folder (currently 1550 items). Not showing any stops / starts when scrolling in this folder.

[OneCommander Support]

How are you scrolling? Holding down arrow on scrollbar? Cursor keys? Dragging thumb? Also, does it make a difference which view you are using?

[Roger Knutsen]

I have not 'show folder sizes' enabled. I scroll with the scrolling wheel mouse button. Usually it scrolls really fast from top to bottom, but when I move up again it skips and stops....

I'll test different views next, thanks!

søndag 8. oktober 2023 kl. 11:33:42 UTC+2 skrev Simon Durkee:

This is most likely because you have Show Folder Sizes enabled

[John Durso]

PGUP/PGDN keys & using the scrollbar on side (either clicking and holding on a open section of scrollbar near bottom or top or dragging the little scrollbar button up and down). Holding the up/down arrow on scrollbar works but is slower since it appears to move 1 row at a time (same with up/down keys). I'm not sure what dragging thumb refers to.  Same on any view I tried. All seems fine-no glitching.

On Saturday, October 7, 2023 at 10:52:27 PM UTC-4 OneCommander Support wrote:

[OneCommander Support]

The only reason I can think of now that could lead to freezing, is when program is doing "garbage collection" (.NET framework reclaims memory occupied by objects that are no longer in use, and it decides when to do it). In Default view there isn't much to reclaim, so I'd be surprised if it happened there. It can also happen when there isn't much RAM available and windows has to dump some RAM to disk. 

Try also Settings>View>Scrolling behavior to Pixel (and restart program)

The "thumb" refers to the draggable think on scrollbar; it is called a "thumb" because IT people are bad with names

[Roger Knutsen]

Actually, by setting   Settings>View>Scrolling behavior to Element and not pixel and also disabling pixel-perfect layout (I'm on 4k display) as suggested by Simon it seems to be working fine. 
Thanks for investigation this issue guys :)