Rapid polymerization with high intensity light will:
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
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