Best Litespeed cache/quic.cloud settings for Metaslider

I just added quic.cloud to my Litespeed cache setup on my site, and am having trouble with a Nivo slider that I built in Metaslider (neither the site, the slider, nor Litespeed cache plugin are new, just the quic.cloud. However, I had not previously done much with the Litespeed cache settings).

Whereas previously the first slider image loaded pretty much upon page load, now, instead of the slider frame, I simply get a horizontal black bar about 16px high. Then, when the full frame loads, it takes a long time to load the image, during which I see a circling loading icon over a cloudy screen within the slider, and when an image does load, after an inordinate lag considering the image size, it’s the second one, not the first slide (all of the images are the same size).

Lazy load and LQIP are currently off, but it was pretty much the same thing when they were on. The upshot is, the slider images don’t seem to be caching at all (although they did before I enabled quic.cloud). I intentionally made them NOT full screen so they WOULD load swiftly, as they are all linked to the sites they are screenshots of if anyone wants to takes a closer look.

I have played around with lazy load and LQIP settings on the HTML, Page Optimization and Media tabs in Litespeed cache, but this is my first time with it all, and there are a LOT of settings! I would very much appreciate any guidance that might narrow down a little where the problem is.

The page I need help with: [log in to see the link]