sv_turbophysics

sv_turbophysics is a console variable available in all Source games. This boolean cvar enables/disables "turbo" physics on the server. It's on by default in Team Fortress 2 and Day of Defeat: Source.

When sv_turbophysics is enabled, players can't move physics objects by touch. To move them in turbophysics mode, they must press the use key. This prevents collisions (resulting in less "bouncy" collision for prop_physics_multiplayer) and as a result less CPU-power but physics behavior will be less realistic.

Syntax: sv_turbophysics <boolean>