[jjeaff]

My $120+ Netgear r7000 can't quite handle my 400mbps connection when qos filtering is turned on. If anyone wants a reference.

[devttyeu]

There are cheap and good routers.

$69 MikroTik hAP ac2 will easily push 1Gbps+ with qos rules - https://mikrotik.com/product/hap_ac2#fndtn-testresults (it's a bit more tricky to setup and you need to make sure you don't expose the interface to the internet)

[bumbledraven]

It's not the hardware that's at fault, it's the software and/or configuration. See here: https://news.ycombinator.com/item?id=17448022