Yes. It is our infrastructure. I wasn't sure if mixed mode would slow the network if there are no legacy clients. We now have more incoming bandwidth at some of our sites, so I am refining our backhauls to make better use of the bandwidth. I am going to convert some links to Greenfield mode to see how it improves the links.
It slows down you network a little bit, offering more modes needs Airtime.
But we are talking about 10% In P2P
If you are looking for higher speeds in the range 1,5km to 50km
The best option today is not buying Mikrotik.
If you need something new for short links look at LHG60