Need help improving resolution in OpenXR Mobile SDK.

I updated a project that used VrApi to OpenXR Mobile SDK.
It runs okay, but there is an issue in which the resolution is low.

When creating the FrameBuffer, I set the width and height to quest2's resolution of 1832, 1920.
However, the resolution was still low.
I also tried setting [Composition layer filtering] on the document, but there was no improvement.

How to improve resolution when using OpenXR Mobile SDK?