Mousewheel scolling lags in explorer

[prefect473]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.97.2
• OS Version: Ubuntu 22.04

Steps to Reproduce:

1. Open a project
2. Hover over the explorer tree
3. Scroll using the mousewheel

If I just move the mousewheel in a single direction, it takes 1-2s before the explorer reacts, and the process CPU usage spikes.
If I experiment and move the mousewheel up/down/up/down/up/down, the lag accumulates with the number of up/down switches, and when it reacts all of the motions are handled at once.
The whole app is completely frozen until the scrolling actually happens in the explorer.
Scrolling by dragging the right-side bar of the explorer works normally.

The issue does not appear to happen in the editor or the "open editors" list, only in the explorer.

I have tried:

• restarting with extensions enabled
• running with --disable-gpu
• disabling compact folders
• disabling sticky folders