I can't see you will have any issues with this. It will likely exceed your 75m internet connection.
Just as a point of information. 1200 means 300m on 2.4g and 867m on 5g running 802.11ac. It will run 300m 5g if it must run 802.11n. This is because this device only has 2 internal antenna. Now don't let that bother you a lot in theory adding the third antenna increases he speed by 150m but in real life tests it only increases is a very small amount. All these numbers are theoretical things anyway that nobody get anywhere even close to.