Material appears very blur on model in Unreal engine

Hi guys, I noticed that when I create a material with my own texture I collected, and apply it to any of my models, it shows up very blurred, it looks like got magnified a lot on the models. I tried to use texture coordinates to tile the UVs, but it did not work well, all of the texture I used are 2048x2048 or bigger than that. Which I really dont understand why is there blur showing up. Can someone help me with this? Thank you!
Here are the screen shot, I couldn’t upload the original texture, this one is just a screenshot too, that is why it’s blurred on here, but the original texture I used is 2048x2048.