Hardware packet queues can introduce significant latency below Mikrotik’s QoS queuing; this is particularly problematic for wireless interfaces where eg >1000ms delays can be introduced on congested networks.
Linux exposes an ioctl (SIOCSIFTXQLEN) to control queue length or eg via: ifconfig eth0 txqueuelen 3, so it is trivial for Miktotik to implement.
Please vote!