I got my shop set up but I don't want reviews to be shown throughout my shop.
Can't find the option to disable it.
There is no global setting to turn off reviews for sitewide. The fastest way to disabled it, would be SQL command to turn if off for each product.
I would just like to add, what @nop4you mentioned above is another approach to resolve this problem. You can go with sql update too (if you like).