Going on rough benchmarking, your CPU is a bit slower than my old CPU (I built a new PC with a new CPU less than two weeks ago):
The i5-3570K is also the minimum recommended CPU to play the game with. The stuttering is unlikely to go away - I had it the entire time I played BL3 (from release) with my i5-3570K.
The game seems more CPU-bound than GPU (though it uses both evenly according to my own PC tests recently, if there’s no bottleneck on either component). 8GB RAM is a bit on the low side (BL3 can easily use 6 to 8GB by itself - again, 6GB is the recommended minimum). Your GPU also looks below minimum spec as well.
tl;dr: stuttering is a sign of hardware bottlenecking, and most / all of your laptop components are either very close to the minimum specs for this game, or beneath them.