700mbps for the 110 seems a bit low. even a 2x2 single client should be able to hit the right numbers like an AC multibeam. The Intel AX210 card for AX-E is a 2x2 which I'm using with the AP. I think some of the testers / writers don't have a full understanding on this stuff. If you setup the network A-Z with proper hardware it works as designed. If you mix in an AC card with an AX AP you won't see 900+ over wifi because AC is 866 and w/ overhead it's going to be significantly less. For testing this stuff the clients have to be capable of handling the kind of throughput enabled by the setup. Making sure you knock out any bottlenecks from the mode / router / AP / client and segregating the 2.4 / 5 bands / clients from each other improves the performance. Trust me when I say you don't want to be duriing a sports car in rush hour traffic with a manual transmission because your leg will get tired and cramp. With the 2.4 clients being mostly a/b/g/n they throw more road blocks in timing into the equation causing your AC/AX clients to have to hit the clutch more often to allow the other traffic to merge.