NB! It seems this console command is not compatible with CS2.
Command Profile

CL_UPSPEED

CS:GO

This command controls your upspeed. The default value for this is 320.

Syntax
cl_upspeed [Upspeed]

Description

This command controls your upspeed. The default value for this is 320.

Syntax And Arguments

cl_upspeed [Upspeed]
Upspeed The upspeed value you want to set. Default is 320.