A bit slow

I have just install my EX2 - 6 TB

It went fine - my mobile (HTC One M8)  - my tablet (Samsung Galx. Tab S and PC and WD become friends and shake hands .- so far so good.

I have a fine little router D-Link 820L and also bluethoot 

I have uploaded my music and my Pics. and when I want to hear some music I find some and play it - no problem at all

But my pics is a different story

First niether my phone or tablet coudl see them - I had to remove the WD-app and reinstall it before they could se any files in the maps

But when I want to open the map it takes forever and then a bit longer if I want to se a pic.

Pretty strange - Music is instant but even very small pictures takes forever

What do I do wrong?

Welcome to the Community.

If I understand correctly this happens when using the WD My Cloud app, correct? What happens when you use WD Photos instead?

The same .- I just takes forever 

Its ok when I have one or 5 pictures in the map - but when the amount climbs up the speed falls like a rock untill is so slow that you give up.

Again music - no problems - Its just the pictures.