Virtual Tour slow loading

[AVG]

Hi,
I´m finishing this virtual tour
http://masdearte.com/visitavirtual/VISI ... index.html
and my problem is that the different 360 views load very slowly. The background images are jpgs 9000x4500 px and about 6-9 MB each. On mobile devices it takes even longer
These are my image settings.
Does anyone can help me? Thanks a lot

[AVG]

http://masdearte.com/visitavirtual/MY_C ... index.html

[Hopki]

Hi,
As far as I can see looking at the newest link your popup images are all PNG file and 230KB images.
The tour loads fast for me here?
How are you loading the images in the skin?
Looks like a large image in a scroll area?
Regards,