Unable to zoom closer than about 1:20

I have successfully created an RGB image, but when I zoom in, nothing further happens closer than about 1:20 (the slider moves but the picture doesn’t change). That is apart from one occasion, when zooming in resulted in a display of magnified pixels. I have tried resampling, to no effect.

Am I probably doing something wrong, or could this be a result of using a fairly standard Macbook Pro, which may not have sufficient image-rendering capabilities?

What product are you using? Thanks in advance.

I’ve tried snap and qgis.
Am I wrong in assuming that what I see should be at a higher resolution than google maps?

Tony Balazs
07711 142750

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It is not necessarily higher resolution than google maps which might use plane photos and not only satellites photos.

OK thank you. That’s helpful.
It’s a pity google maps is so out of date though!