oQey Gallery with 256 pics on https://lightvision.bizz4.com , crash memory ram

Hello,
See my problem on my subdomain https://lightvision.bizz4.com
I have a gallery with 256 pictures
The problem is that if you start the Task Manager – Performance
once the play slideshow begin , with 3GB Ram memory on my laptop i3 I remain without Physical Memory, on the Physical Memory Usage History u will see that the graphic always grow up and than CRASH

Please tell me if there is a solution with this crash of memory
and than I want to pay this plugin but I want that’s start play random pics and music all the time.

https://www.ads-software.com/extend/plugins/oqey-gallery/