when I scale a model down to see the entire element after I have sculpted a detail, the cavas also zooms to a smaller size automatically. I would like the canvas zoom level to freakin stay put as I sculpt and not change sizes. 
Also, my model looks jagged at zoomed in levels, while tutorial videos have smooth models. I didn’t see any settings to fix sizes on the zoom pallete.
Do i just need to start with a bigger document size? I heard that this will slow down the system though?