Automatic Transmission shifts hard when downshifting

Ok heres the problem my automatic tranny whenever it downshifts into 1st gear it shakes the car up a bit, When it shifts from 1st to second it shifts really hard too but in all other gear shifting up and down is normal. Why would that be, also in reverse the car sputters and the rpm jump from 500-1000 rpm within a given second.

Any insight, thanks guys!!!