what's going on with my asian pear tree?

I bought and planted this tree about 2 years ago, and it's growing, but it always seems to be having trouble with it's leaves. Also, it's flowering, but the fruit never develops very far and is not even close to being edible. Does anyone know what's going on?

https://preview.redd.it/xl0ydgz96w4h1.jpg?width=3024&format=pjpg&auto=webp&s=bee76171509d138ce7bb77f96f5fd42cce8af6ba

https://preview.redd.it/46a15gz96w4h1.jpg?width=3024&format=pjpg&auto=webp&s=c29da4f7cd6042abf6344de366a6096676c9d9d2

https://preview.redd.it/duqoufz96w4h1.jpg?width=3024&format=pjpg&auto=webp&s=c3852f9a38c5bc7eaf512308c026d67ee1fd2d38

https://preview.redd.it/4qsfbgz96w4h1.jpg?width=3024&format=pjpg&auto=webp&s=789c5986d8da3d7120e71482bbff7988f82d3f39