Which physical factor does NOT decrease G performance?

Recovery time does not decrease G performance because it allows the body to recuperate and restore blood flow to the brain and vital organs after experiencing high G forces. While high G forces can lead to G-induced Loss Of Consciousness (GLOC), adequate recovery time can significantly improve overall performance and resistance to the effects of G forces.

It is important to understand that duration of exposure, rate of application, and direction all contribute to the impact of G forces on the body. Prolonged exposure to high Gs increases the risk of GLOC, rapid application can overwhelm the body's ability to adapt, and the direction of the G forces plays a significant role in how the body responds, particularly since vertical Gs exert different effects than lateral or longitudinal Gs. Recovery time, however, is a critical factor that allows pilots to clear out the physiological stress induced by G forces, thereby enhancing their performance under high-stress conditions.