Slow Web Designer Premium upload

Hi guys,
Have seen many query's as to why Web Designer loads each element of the page each time even though the 'publish changes only' box is checked. Haven't found or been given any info that helps (online search AND WD tech support. I check the boxes. uncheck the boxes, optimize the images, etc.
Does anyone have ANY suggestions?

Hi and welcome to TalkGraphics

I wonder if this is due to the speed of your web host's servers? Do you have other sites and do they upload faster?

Using File > Document Info, can you advise back on File Size, Total Pages & Objects?

Acorn