LayerSlider Blinking

There are currently 4 websites of mine this is occurring on. When disabling ShortPixel, it stops. All of a sudden, when LayerSlider is changing slides, it now blinks the image once on load. It never did this before.

At every slide change, it blinks once really quickly.

I have tried changing all the SP options and it still won’t work. Using BOTH, SRCSET makes some images not display, so I need to keep SRC on.

Is there any way to make it so that SP will stop doing anything to LayerSlider? any advice will be helpful. Could you give me the right code to add to the exclusion configurations in SP?

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