cl_updaterate
Removed in CS2: the update rate is fixed by the server.
What to use instead in CS2
In CS:GO, cl_updaterate set how many updates per second you asked the server for. It no longer exists in CS2: the server rate is fixed (64 updates per second, as shown by cl_interp) and the sub-tick system makes your inputs precise anyway.
cl_interp
Related commands
cl_updaterate FAQ
What does cl_updaterate do in CS2?
Removed in CS2: the update rate is fixed by the server. In CS:GO, cl_updaterate set how many updates per second you asked the server for. It no longer exists in CS2: the server rate is fixed (64 updates per second, as shown by cl_interp) and the sub-tick system makes your inputs precise anyway.
Does cl_updaterate work in CS2?
No. cl_updaterate was a CS:GO command and does not exist in CS2.