Apps running slow on ipod touch?

[Geek]

So the past few days or so Tumblr, Youtube, Vine, and Instagram have been loading so slow that i cant use them. At first i thought my internet usage from dish was used up, but My safari and facebook and my other games still work just fine. Plus my laptop is fine. I restarted my ipod numerous times, rebooted my dish, and re downloaded the apps that werent working. Could you possibly tell me whats wrong and howro fix it? It usually isnt like this