Speed

Speed is a gameplay aspect that defines the amount of energy used for a swing with tools or how quickly a weapon can be swung, respectively.

It can be enhanced by upgrades on certain weapons.

The speed depends on the amount of energy and stamina.

When your stamina level reaches 0, you can't run fast until you get again enough stamina.

VR

 * In VR, speed (according to current knowledge) does not affect weapon swinging, and will not reduce stamina. This makes wielding a high damaging but low speed weapon very viable, even weapons like the club covered in Tooth very viable.

Theory

 * This is to accommodate for the fact that you can swing as fast as you do in real life, and this is for balance
 * This is simply a bug