PSA at 6

Good Day
I am 52. During my last physical my PSA was 5.7 in one year it increased to 6.1
Bioposy was scheduled 3 months later. I convinced my urologist request a MRI with contrast. My results PI-RADS 2 (indicates a "low" probability of clinically significant prostate cancer). My prostate enlarged (BPH). I get up twice at night, my pee stream is weak.
With a PI-RADS 2 results do I really need a bioposy? Need some advice