The max weight of videos is too small

Hi every one !

Today I made shockwaves with AE to upload them to Fotolia. To get a very good quality and be capable of slow motion, I made the video 4K @ 120 fps in Quicktime format (mov). The result weight 4.63 Gb and unfortunately the maximum size for a video on Fotolia is only 3.9 Gb. I try to made the file smaller by code it in another codec (h265) but the result was just horrible !

I know that the Fotolia database isn't infinite but only 3.9 Gb is way to small. 5 Gb should be good.

Thanks