Why are my clash of clans troops blurry?

When I deploy troops to attack or while it is trained already, it shows a blurred picture of the troops. Why?

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Well it also depends upon ram and memory as if you use a phone with bigger ran and memory it will work smoothly but complications may occur if you have a slow internet as it causes lag and causes game to crash or you may have virus of corruption's in your application. So try to use fresh copy of the game.