[lgeek]

On Firefox on Android on my pretty old phone, a blurry preview rendered in about 10 seconds, and it was fully rendered in 20 something seconds. Smooth panning and zooming the entire time

[connicpu]

Firefox on a Samsung S23 Ultra did it a few seconds faster but otherwise the same experience

[fennecbutt]

Following up with Firefox on S24 Ultra loaded from blank to image in a second and then could zoom right in fine with no blurriness or stuttering at all!