Why the terrain is nice on PC but rough on moblie as the following Image?

Why the terrain is nice on PC but rough on moblie as the following Image,any soutions?

forget to add the Images

@bitxiaozhang said: forget to add the Images

Your pictures still don’t show up. You need to provide direct links to them and not to a landing page. If that site doesn’t support it then there is always imgur.com

You can’t just whack a game together on mobile like you can on modern PC’s. Everything has to be scrutinized. Object count and triangle count have got to be nigh on anorexic. Its not the greatest idea in the world to use huge textures either.

@jayfella said: You can't just whack a game together on mobile like you can on modern PC's. Everything has to be scrutinized. Object count and triangle count have got to be nigh on anorexic. Its not the greatest idea in the world to use huge textures either.
Thanks for your anwsers!