Comfort and performance are inverse when it comes to springs/coilovers.

For comfort, spring manufacturers give the spring a progressive rate, which means the resistance increases gradually over compression/tension (easy to compress at the beginning). A lot of coilovers have linear rate springs, with performance in mind, which means the force increases at a linear rate as they are compressed/tenssioned; force is proportional to displacement.

This means that bumps in the road will cause the easily compressed progressive springs to react, where as the linear springs will not; for this reason linear springs give a harsher ride.

Of course, linear springs will be stiff from the start, so if you're making a hard turn, they're be less mushy and will keep the car flat, rather than rolling.