best router for flex smartSdr to have least latency ?

Hi,

from the research I did, I have come to the conclusion my older router is just not up to the task of supporting the flex radio and its remote capability without a lot of latency.

I have the asus rt-ac68R in a mesh configuration, hardwired to the flex radio lan port.

the radio shack switch is connected via a mesh node using a 5g signal to tx to the main router which is 100 feet opposite side of the house.

then out to the fiber. this also adds even more latency.

I am looking for suggestions of whatever routers you "remote" operators use to get multiflex to work without continual popping on your remote pc.

I am sure that there is more than one correct answer, so if you please tell me the routers you are using, I will go and compare the features of those and decide if i want to upgrade.

a mesh system with a node at the shack someone proved to work is even better, maybe if I upgrade to one of those 6ghz mesh systems it may help?

its possible all I have to do is hardwire the 2 nodes together for a lan cabled backhaul system, but I dread pulling that 100 foot lan cable through my attic to make that happen. - worse, if I do that and nothing improves…

but if someone has evidence that solved the issue, then ok. or any remote systems of links as I described that can work.

thanks for any advice.