Yesterday I bought a 32gb wifi iPad Mini 2 in excellent condition for $180. it was a great deal, and it is currently running IOS 10.3.3 and is very fast. It gives me the option to update to IOS 11 under settings, but as this is an older tablet how does it perform on IOS 11? Would the mini 2 do gaming better or worse on IOS 10?? Should I update it or leave it on IOS 10? Thanks in advance.