Does my router support Bandwidth limitation for a specific Mac address?

My brother is driving me crazy with his online streaming addiction, and since am paying the net bills, i only allowed him to use 20% of the bandwidth so he wont mess with my net time.

Am doing that after i got hold of his laptop and instealled NetLimiter, disabled tray icon, task manager and control panel so he can't delete it.

However am wondering if there is a way to do this through the router, i know there is, but i looked all over my settings and didn't find any field that is related to the bandwidth control, the closest one to the info available online is this QoS page :

do you think its possible ?

I can add more pictures of other pages if its needed, i also don't know the exact model of my router as its not written anywhere ("150M Wireless N" maybe ?)

Thank you and have a good day

Edit here is the Help page of the Advanced Setting the VLAN part is talking about some bandwidth control, here is the a screen shots of that page

EDIT 2 Access Management Screenshots

Congestion should never cause lag. If congestion causes lag, it is a sign your equipment has a well-known bug called bufferbloat. That's when a network box lets its queues of packet/frame buffers grow and grow which adds lots of lag, without every dropping a packet, which accidentally keeps TCP's congestion control algorithms from ever seeing that congestion is happening and needs to be controlled. So it keeps Congestion Control from kicking in to fix the congestion, and just adds lag because all the new frames have to wait behind a long queue of older frames before they can be transmitted.

To solve bufferbloat, you have basically 3 options:

1. Install firmware on your router that has an anti-bufferbloat queueing (a.k.a. "Smart Queueing", an advanced form of what used to be called Active Queue Management or AQM) algorithm such as FQ-CoDel, and enable it. This usually means installing an aftermarket Linux-based open source firmware distro such as OpenWrt, DD-WRT, etc.
2. Replace your router with one that has Smart Queueing (FQ-CoDel).
3. If you can't firmware-upgrade or replace your router for some reason, you can buy a second router to go between the router you're stuck with and the rest of your network, and set up FQ-CoDel and bandwidth shaping on that router, so that it acts as a slight bottleneck on your connection, so FQ-CoDel can drop packets or do Explicit Congestion Notification to allow TCP Congestion Control to kick in, before any bloated buffer queues can build up anywhere on the network. IQrouter is a turn-key solution that automates all the tuning for you.

Beware common bad advice: Many people are unaware that congestion should never cause lag; they just think it's a natural fact of congestion that you just have to live with if you sometimes saturate your link. Such uninformed people often attempt to work around the symptoms by deploying strict QoS limitations on the users/devices/protocols/apps that seem to be using the most bandwidth, but that's a hassle and can add its own set of problems rather than solving the root cause.