I’d stick aggressive tyres with large side knobs on front and back, with pressures as low as you dare.
Brake on the approach to the corner whilst the bike is upright.
Whilst keeping your torso flat and low as possible, chin up, elbows out, outside leg forward, look as far ahead out of the corner as possible, and really lean the bike as much as the camber and tightness of the corner dictates
Practice smashing that type of corner until you feel progress, increase your pressures afterwards to protect your rims.