loading time

[nickysilver 16]

Hi, I realize this is not an earth-shattering problem,.  Since yesterday Emby (the app) suddenly takes forever to load. I'm on an Nvidia Shield. Both the server and the app are on the shield (although stored on an external hard drive). It always loaded very quickly. Since yesterday the app takes up to four minutes to load. (I always think it's not going to!) Before that it loaded in a matter of seconds.

I haven't changed anything. Any ideas?

Should I try re-installing something?