2020 pfSense 2.4 Limiter Tutorial: Limiting bandwidth per-IP on your network devices 

Quick 10 Minute pfSense 2.4 Limiter Tutorial: Limiting bandwidth per-IP on your network devices
Intro - 0:00
Create Limiters - 1:52
Create Host Group Alias - 3:36
Create Limiter Rule - 4:52
Check Limiter Status - 8:28
Outro - 10:10
USECASE: To limit the bandwidth of network devices that don't have any in-built way to limit network traffic bandwidth. Examples: video game systems, unruly torrenters, etc.
docs.netgate.c...
Gather Information About Your Internet Connection
Speed test : www.speedtest.net
Information from your ISP's website
Create Limiters
Firewall \ Traffic Shaper \ Limiters
Create Host Group Alias
Firewall \ Aliases
Create Limiter Rule
Firewall \ Rules \ LAN
NOTE: Remember that in and out are from the perspective of that interface on the firewall. When choosing limiters on the LAN interface, out is download (traffic from the LAN NIC out to the LAN) and in is upload (traffic from the LAN into the LAN NIC).
LAN:
download = out
upload = in
WAN:
download = in
upload = out
Check Limiter Status
Diagnostics \ Limiter Info
Speed test: www.speedtest.net