loading delay

Hello

I notice a delay in loading the shop page and the variation buttons. For 2 seconds I see the default options like here https://prnt.sc/uCz0bKnnwov2 and the loading wheel
https://prnt.sc/aHwODXxu07gb
and only then I see “add to cart” with the variations below. https://prnt.sc/UPzvG2htxE6N
Is this a cache issue? Ajax or something else? Can we fix this?

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