Virtual tour not working after many reloads

Hi,

I have one question. I have a client who frequently uploads a virtual tour. After several loadings and opening of new tabs, the virtual tour no longer loads, but looks as if the server is down. And it's not. And it doesn't just happen on my virtual tours. It happens to me even on tours like in the example. For example:

I open in a new tab and load:
krpano

After that, I open another tab and load the virtual tour again. And then another tab and load same URL. After the fifth tab, the virtual tour will no longer load. Ok, I close all the tabs and try again - it doesn't work. It takes forever to load.

I close everything, open an incognito window - everything works again.
I shut down Chrome on EXIT, reload it - everything works again.

But sometimes even after restarting Chrome, loading still takes forever. As if something is broken.

Is there any way to fix this thing? I have a client who deals in real estate, he often loads a virtual tour and probably has dozens of other tabs open, so he complains that the tour is not working. And it actually works.

Is there a way to fix this?

Thanks for the answer. It's probably a problem with graphics cards that have 8Gb of RAM, or even less.

Quote from sexta

You are probably reaching the processing/memory limit of your device. Test on a high-end device.

I have:

Processor AMD Ryzen 7 5800X 8-Core Processor 3.80 GHz
Installed RAM 64.0 GB
Nvidia RTX 3070 8GB ram

I don't know why that's not enough.