remove transition from slideshow and/or reduce time for transition

The website is https://www.marylucier.net/, and the page I need help with is  https://www.marylucier.net/installations.

Does anyone know how to remove any and all types of transitions for slideshow image galleries?  I have fade has my default transition, but I really don't need a transition in the image gallery.  I have tried:

.slide { visibility: visible !important; -webkit-transition: opacity 0s ease-in-out; -moz-transition: opacity 0s ease-in-out; -o-transition: opacity 0s ease-in-out; transition: opacity 0s ease-in-out; }

but the fade was still there, so I took it out.  

I also implemented:

.slide {; opacity: 1 !important;; }

This removes the fade, but there is still a delay between the images.  Therefore, when I click from one image to the next, the previous image lingers in the background for a second after the new image comes up.  Does anyone know how to remove this delay?  It's not noticeable with images that are the same size, but for images that are different sizes it looks incredibly strange.

Thanks in advance!

Hi @edeliepenguin did you ever figure this out? im trying to do a similar slide show and the last image lingers for a second and I dont want that