In reply to tim123487:
Things that most affect my performance at an indoor wall :
1. Partner - How serious about climbing they are & (less so) How well I know them; also massive psychological affects due to personality, style, approach etc
2. Fear of falling
3. Regularity of training (lethargy & lack of motivation from too little or too much)
4. Time of day (AM & early aft being best)
Motivation is an overall killer of any performance for me, but that can occur suddenly (due to partner effects, personal factors on the mind, recent eating, temperature or something)
If i'm not motivated beforehand, I wouldn't be at the wall!