Quick Cache seems to conflict with NGG slideshows

Hello, I’ve had some problems with pages with multiple Flash slideshows from the Nextgen Gallery on them. The slideshows would be stuck loading and never show any picture. After I cleared the cache it seemed to work, but after a while I got complaints from visitors again. Now I’ve disabled Quick Cache and it seems to be working again.

Is there any way I can fix this without having to delete Quick Cache?

The page(s) can be viewed here: https://www.basdemos.com/then-now-duindorp/

https://www.ads-software.com/plugins/quick-cache/