the hub is a dreadful wifi router.. you may find that splitting the bands helps though - it does for some /shrug.
log into the hub at http://192.168.0.1 and navigate to advanced -> wireless -> smart wifi - disable Channel Optimisation, save.
then advanced -> wireless and rename the two wifi networks to whatever you like (maybe just append a _2 and _5 to the 2.4 and 5ghz networks respectively) apply/save and reboot and you should be back to the configuration you had previously with two networks showing..
whether or not this will have any meaningful impact on the quality of your connections I can't say..
if it doesn't, then you might want to consider investing in your own third party router that better meets your needs.