Dear Aasem,
Sorry for the delay in answering.
“The problem that still exists is the background overlay on mobile devices, particularly IOS. The main background loads first then the overlay loads after it by about a second. This happens with each slide on any browser on iPhone!” – please record a video of the problem from your mobile device, upload it on filesharing, for example – https://wetransfer.com/, and provide us with the URL in the Private Content area.
Kind Regards,
8theme team