I’m also having this problem with new carousels.
The gtmetrix score went on to accuse css resizing on all sliders that use smaller images. in widgets bars too.
I had a similar problem when used the infinite scrooll’s lazy load option enabled.
I’m still investigating but I could not see what the problem is.
Also on the products page the gallery loads great and gives a resized to the weird thumbnails in the first reading.
And sliders not autoplay automatically too…
I regenerate all thumbs but not solve the problem. XStore Core is last too.
If you want to look at Olga follow credentials, maybe we found the problem.
Att
Rudimar