WooCoommerce Product Image Problem

Hellow,

I hope someone can help me fix this problem i have.
So i will do my best to explain this as short and clear as possible.

My product images are being displayed too big and Blurry.
the product images on my home page are being dispayed in different sizes. It looks messy.
For example i have a product Smartphone and when i’m adding its images to the product it is displayed out to be too Large and Too Bluryy.
Please help me out of this.