If you mean when you open a link, and it shows a blank white page, then yes... I too sometimes face the problem, specially on Opera Mini...
About "The App Gap"; well almost all Instant Messaging Apps (What'sApp, Telegram, Messenger, Imo etc), Social Media, Cloud Storage and Games are there... Sure, they're not on par with their Android & iOS counterparts, but that's soon going to change because of Project IslandWood...
Project Islandwood is basically an iPhone's Apps Porting tool... With this port, devs can easily recompile their apps to run on Windows 10 Mobile...
Here's an example:
MESSENGER FOR APPLE iOS:
And...
MESSENGER FOR WINDOWS 10 MOBILE:
See any difference, brother...?
I for one don't see any...! There might be a few, but the chances are pretty slim... The Messenger App for W10M is a direct "Clone" of iOS 9's Messenger App...
Hopefully, more developers will follow suit...
PrayforWindowsMobile