cl_dynamic? pretty sure that'd be cl_dynamiccrosshair 0 doesnt affect lag though, neither does hud_fastswitch 1
I'd still recommend using them, dynamic crosshair takes time getting used too but will allow you to improve your aim. fastswitch makes it so 1 press of the 1-2-3 key will switch to the weapon assigned to that key.
and if you have shitty internet you might wanna try having your cmdrate and updaterate at 80. Cause 101 is LAN settings, so it kinda chokes if you're lagging due to poor internet or a long distance to the server