Thermostats - high flow vs standard flow - now I am confused

If you have a high flow water pump doesn't it make sense to use a high flow thermostat also ? How can a high flow water pump work at its best if it's choked down by a standard thermostat . High flow stats are NOT that expensive . I used a high flow stat with a high flow w.p. and clutch fan and my temp dropped 12*F. Did not completely solve the problem but helped a ton