Rapid polymerization with high intensity light will:
Increase bond strength by decreasing stresses
Decrease bond strength by increasing stresses
No effect on bond strength
Initial increase followed by a decrease in bond strength
High intensity lights do not produce the same type of polymer network during curing. 
Rapid polymerization may produce excessive polymerization stresses and weaken the bonding layer. 
Reference- Sturdevant 6th ed Pg 495