You can define the maximum allowable texture size applied to the objects.
If your image resolution exceeds the maximum allowable size (e.g. 512 x 512), the image resolution will be scaled down to the setting (e.g. 512 x 512), which can result in a blurry image.

If you have high-resolution images, you can set the
Max Real-time Map Size higher to maintain the original image quality.
Be aware that images tend to consume VRAM, so make sure you have enough available.
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Source Image = 6000 x 3000
Max Real-time Map Size = 512 x 512 |
Source Image = 6000 x 3000
Max Real-time Map Size = 4096 x 4096 |