cmputer rendering

while rendering as i zoom in a bit, i notice unlikable pixels and fuzziness on rendered scene/model. is computer rendering unprofessional way to render?

will services like render street make the render models more pixable

What matters is the resolution you render that image in…
The render result is exactly the same, whether you render it on your own machine or a render farm.

I guess you are talking about noise of unbiased renderer (cycles)? Do show an example.

It might help, as burnin says, to show a sample of what you’re talking about and give us an idea of the number of samples you are using (if you’re using Cycles).