Layer Selection Issue and Performance Lag in Photoshop

Hi,

I'm having an issue in Photoshop regarding how layer selection looks and how the app performs.

When I select a layer, the borders should normally appear blue and solid. But on my system, they appear gray and dashed, and this also causes lag.

The issue behaves like this:

The first document or tab I open works fine. The selected layer border appears blue and there is no lag.

But when I open a second document or tab, the selection border appears gray and dashed, and Photoshop starts lagging.

This happens every time.

Additional info:

I have updated my GPU drivers to the latest version.

I tested this with two different versions of Photoshop. The same problem occurs in both.

The "Use Graphics Processor" option is enabled in Preferences.

I have attached screenshots and videos to show the difference between the first and second tabs.

Please help me understand if this is a known issue or a compatibility problem.

Thanks,

HASKAN