Network speed limits are generally measured in Gbps, Mbps, Kbps, …. The feature is using KB/s as units which is completely counter intuitive.
It seems to work well though, I set 2048 KB/s in the admin page and got:
Which is about correct, yes. But can this feature be made to use more intuitive units?
(This was beta4, can retest with beta8 if needed)
Because most applications that need to use high bandwidth use KB/s, MB/s as a unit, e.g. Dropbox, IDM…
What’s your reason for setting a speed limit?
I do not know what other tools do to be honest, but if they are brain damaged, so let them be 
They just seem completely unobvious. If I want to set a limit on the bandwidth normally it is to “split” my overall bandwidth in several parts, so I’d expect to use “network speed units” (e.g. Kbps, Mbps, Gbps, …). I am not trying to limit “volume downloaded over a unit of time” (e.g. MB/s, KB/s, GB/s). It’s been a while since I’ve done professional network equipment configuration (only doing “paper” these days…) but I seem to recall both Cisco and Teldat limiting clients using Kbps or Mbps…
Maybe I am the strange guy here and you would like to ask other users?
Thank you for your suggestion.
The reason we use “KB/s” is that the real-time rate need use “KB/s” to be consistent with the applications.
I understand that your use case requires a complete QoS settings, not just speed limit. We plan to add QoS in version 4.2, and the settings of QoS will use “bps”.
4.2 and QoS - I was going to post a enhancement request (as hooks are there already) - below is from 4.0.1b2 on AXT1800
root@GL-AXT1800:~# uci show qos
qos.general=qos
qos.general.enable='0'
qos.general.model='cake'
qos.general.upload='1000'
qos.general.download='1000'
qos.general.sum='0'
qos.@wan[0]=wan
qos.@wan[0].upload='1000'
qos.@wan[0].download='1000'
qos.@wwan[0]=wwan
qos.@wwan[0].upload='1000'
qos.@wwan[0].download='1000'
qos.@tethering[0]=tethering
qos.@tethering[0].upload='1000'
qos.@tethering[0].download='1000'
qos.@modem[0]=modem
qos.@modem[0].upload='1000'
qos.@modem[0].download='1000'