Thank you for information we will add sensor information to our database ASAP. Sensor information is helpful for the alignment but not necessary. Even without it RC can create proper alignment.
If you would like to you can add camera to database of your RC manually.
There is step by step guide in Reality Capture help. Please check “Extending Camera Database” section.
Regarding texture, RC sometimes does not display the full texture resolution in sweet render mode. RC is trying to fit them to GPU, max one 16K texture (or 4 8K textures, 16 4K textures, etc.). Therefore, the displayed texture can be at lower resolution than the calculated one. Is it blurry also when you export it?
Please could send us print screen of texturing settings used for the model?