The target device for your UE application has a finite amount of resources available, both for keeping objects in memory and processing them. When building your application, you must decide what to spend those resources on. You should familiarize yourself with your device's capabilities in terms of the speed, threads, and bandwidth for your CPU and GPU, as well as your device's memory, graphics memory, and available disk space.

High-resolution textures require a lot of space, both to store on a device and in a device's texture memory, and larger textures require more pixels to render and process. While they can increase fidelity, there are diminishing returns to texture size given your device's screen resolution and the viewing angle of the texture. It is important to use the smallest texture possible to obtain the desired level of fidelity.

The target device for your UE application has a finite amount of resources available, both for keeping objects in memory and processing them. When building your application, you must decide what to spend those resources on. You should familiarize yourself with your device's capabilities in terms of the speed, threads, and bandwidth for your CPU and GPU, as well as your device's memory, graphics memory, and available disk space.

High-resolution textures require a lot of space, both to store on a device and in a device's texture memory, and larger textures require more pixels to render and process. While they can increase fidelity, there are diminishing returns to texture size given your device's screen resolution and the viewing angle of the texture. It is important to use the smallest texture possible to obtain the desired level of fidelity.

https://youtu.be/OnL8oTWDJOs?si=3ncOipHkzh59FPAp