Mesh Shadows problem

Hello unreal people! :kissing_heart:

Plz, i need help.

How to fix this bad shadows on static mesh?

Also, how to make this sphere shape more smooth?

Thanks a lot, and sorry for my noob questions. :crazy_face:

Guys, please help.

Just dont understand, how to make static mesh more smooth?

and why shadows so bad?

Cant find answers :((