I redid my suspension recently. I had to take one spring out and rotate it 90 degrees because it would not sit in the perch correctly after reassembly.
Also, I jacked up the control arm to the level it should be under load when i torqued the bolts to factory spec.
Unless the springs are not correctly seated in the perches, I don't see how time will fix it. But again I'm not even qualified to be called a hack!