A staged copy strategy (0.5 → 0.75 → 1.0)
Stage 1: A-B loop at 0.5x. Use your ears to pin down every single note in the phrase first.
Stage 2: raise it to 0.75x and check whether your hands can keep up. Adapt to the rhythmic feel.
Stage 3: return to full speed. If your hands still follow at the final tempo, the copy is done.
Repeat this three-stage pattern phrase by phrase and a solo that felt "impossible" on the first listen will be under your fingers within a day or two.