@nnabeel
Are you using 30 psi in your tyres now? Are they much stable on roads now?
What about impact on fuel consumption?
In my fiend's Alto, i also felt bouncy at 35 psi even with Bridgestone so i thought doubt towards Suspension issue(as spacer is also used in rear wheels)
My friend experienced difference in fuel consumption and brake performance between 30, 35 & 36 psi