As I said previously, obtaining and setting factory recommended tire pressure is a start to checking how the vehicle handles.
Secondly, get it aligned. Make sure all adjustable parameters are in the middle of their specified ranges, even if zero degrees is not in the middle.
Finally, once alignment is done, and it still doesn't drive as expected, or tire wear is still happening, then you have damage - bent or worn parts. Wheels could be perfectly aligned, but be in the 'wrong place' on the vehicle: setback, where one wheel on the same axle is ahead of or behind the other by fractions of an inch. Or, another wheel higher or lower than the others due to spindle or body/frame damage, etc.
In the front, this could mean poor return from turns, or bad Ackerman angle. In the rear, it could mean thrust angle issues.