Is that folder local or on network?
What isolation mode applies on large folder?
Doesn't matter local or network folder, opening approximately the same.
Isolation level - Merged.
1 person found this helpful
I have found partial solution.
This parameter in package.ini speed up folder listing to 9-11 seconds.
Can you please explain how exactly you partially fixed it?
What com object id did you use?
I have a similar problem i think