I know this isn't a fix but have you tried taking an invisibility potion before going through?
It's strange because when you finally load the world and die you click respawn and you are instantly back in the overworld, not waiting for it to load. Please sort this bug as looking at the other posts this has been around for a very long time.
Kind Regards
Not urge Mojang to fix this problem? It's been a problem for over 5 years, at this point I don't think they can be accused of rushing anything.