1999 Mitsubishi Eclipse

When im taking off in my car from a stop, if I accelerate slow it doesnt pop until I mash the pedal. But if I mash the pedal from a dead start it pops. Sometimes when I decelerate it pops. I thought it could be a mount or something so I was going to jack it up n look at it. But today I was looking at my car and I noticed the rear was lowered n the front was lifted. No I think maybe it has something to do with the struts. Wich may explain the popping, like shifting the inital weight maybe?