Any suggestions on optimizing the load performance of Post Grids from The Grid plugin? On the web page referenced below, I have a grid where I'm pre-loading close to 400 podcast posts with a 0ms preloader item display. I like the preloader option because I can show the visitor a loading icon and once it disappears, I'm confident all podcasts will be there for them to filter and do a keyword search on. While this is performing pretty well on desktop, it is excruciatingly slow on mobile devices (even on wifi).
Can you guys or gals try to pull this page up on desktop and then on mobile to see what you experience? https://zenparentingradio.com/podcast-directory/ (Note: I'm using chrome browser on an iphone 6s) .
My experience: On mobile, the loading graphic doesn't show and then once the posts load, you can't scroll up or down right away. Once you are able to scroll, it is very very slow. It is basically unusable on mobile. Any recommendations?