popup feature - performance decay from ol 6.15.1 to ol 10.6

[andreaordonselli]

Good morning,
I created 2 pens to compare performance.
The only difference is the OpenLayers library.
Can you please help me?

https://codepen.io/andreaordonselli/pen/ZYQRNKz
The popup appears for 1 to 2 seconds

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https://codepen.io/andreaordonselli/pen/gbPKJYG
The popup appears from 6 to 10 seconds (around 7 in this example)

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