We are experience som issues  when using filter with the pavilion theme

Yes we do use an extensive and big product filter we do sell books
so filter contains off Title /author /genre/format which now creates now the bottleneck when loading some categories on first load.

Anyone that have a good suggestions if there is any good way that having and keeping a big filter but still have the page load ok ?

Biggest single category contains of 4k products (And yes it is already slimmed down)