preview Office files and context menu popup very slow

[ralph.goossens]

Office files can take 3-5 seconds to display, no matter what the file size.
Excel and Powerpoint files will always be extremely slow, Word may be a little bit faster for very small files.
All other file types (images, PDF) preview will display almost instantly.
I haven't changed any of the preview handlers, so am using all the defaults.
Also the context menu pop-up (right-click) takes several seconds to appear.
Hardware /opsys should not be the limitation: Intel Core i5, 64bit, 8Gb RAM, Win10.

[highend]

Is XYplorers folder excluded from your antivirus solution?

Since when are Office previews slow, since the beginning?

Which XYplorer version?

[ralph.goossens]

Yes, XYplorer is excluded from the virusscan.
It's been slow on both items mentioned since the beginning.
I'm using the latest version: 21.50.0100

As an additional problem, sometimes the PPT files don't display properly, only the text is shown.
I could not notice any systematic as to when or when not PPT files misbehave in the preview.

[highend]

XYplorers folder or XYplorer.exe itself?

The preview and the 64-bit context menu are different applications in XYplorers folder...

If unchecking
Configuration | General | Menus, Mouse, Usability | Context Menus | [ ] Hide shell extensions from shell context menu
doesn't help I'd try to make a clean uninstall of MS Office and reinstall it again...

[ralph.goossens]

I have excluded the whole Xyplorer folder from the virusscanner.
Also unchecked "Configuration | General | Menus, Mouse, Usability | Context Menus | [ ] Hide shell extensions from shell context menu".
Unfortunately no improvement.

[RalphM]

Shouldn't it rather be check "Hide shell extensions..."?

[ralph.goossens]

OK, I have checked "hide shell extensions" but that didn't make a noticeable difference.

What is very interesting though is the following.
Out of frustration I've downloaded FreeCommander XE to play around with, as it also has a preview function.
When FreeCommander runs in parallel to XYplorer, suddenly the preview performance in XYplorer is hugely increased...

The context menu pop-up however remains slow.

[ralph.goossens]

As per your earlier suggestion, I have reinstalled the Office suite.
There is a slight improvement in performance of the preview, but the xlsx preview remains the slowest - taking at least 3 seconds to show.
Would appreciate any further suggestions to resolve the issue.

[highend]

Is the preview slow as well if a fresh XY instance is used?
Execute fresh; from the address bar

[ralph.goossens]

unfortunately it remains slow for all Office files even on a "fresh;" instance.
PDFs will display fast, PPTx will display moderate, and DOCx and especially XLSx still take 3 or more seconds.
sound and video files even fail with "cannot preview" message, even though they are on the enabled on the "previewed formats" settings.