I know this isn't ideal but react-slick seems to be unmaintained for a few months already (and it also has performance issues:, which haven't been addressed by the maintainer).

I would try to replace it with another carousel component and see if the performance improves. I picked this one as I have used it before and it seems to be maintained better than react-slick:

This one is another library I have used before - but it hasn't been updated in a few months so I cannot recommend it at the moment.

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