Is it the receivers that makes a radio latency fast?
Meaning, will an MT4s radio with a 92622 receiver have as fast of a response as with the 461, 471, 481 receivers?

It's a combination of transmitter and reciever. In Sanwa language FHSS 3 or FHSS 4 standard. You need to set the transmitter to match whatever reciever you are using.

The MT4s is FHSS 4 capable which is the fastest standard Sanwa have available and so you can use any of Sanwas recievers.

451, 451R are FH3 recievers and 461, 471, 481, 472, 482 are all FH4 recievers and are the fastest. So just make sure you set the right setting in the bind menu on the transmitter before you bind the transmitter to reciever.

Hope that helps?

Yes, that helps. Thanks!
I take it that the higher the FH, the faster it will be. So would the 92622 receiver in an MT4s be much faster than an M11 with DSS?
And is the FHSS much faster than DSS?