ABS cuts in when wheel speed sensors detect wheel locking. If you want to not have ABS engage, brake less hard, brake less in situations that have reduced available grip, increase overall grip (grippier tires/more aero and so on). It's not ABS cutting in too easily, it's for whatever multiple reasons wheels are locking too soon, ABS does it's job after it already happened. Try during next lap brake sooner and a bit less hard (if doing treshold braking), try braking most in straight line, less when steering wheel is turned, or if using trail-braking, try lifting brake pedal quicker relative to steering wheel turning.
How much one needs to brake should come from how well one feels/knows car/track/grip, from eg. deceleration g-forces, tire squeal noise
, knowledge of track, car, weather & available grip level, feel of speed. Mostly ramped up by experience. What one can improve "technically in car" might be braking operating feel, to brake just the right amount one wishes to. For example one thing i like in CSG spec brake pads (unfortunately very expensive) is their modulation/feel, that eases me to brake just the right amount i command it to .. problem being, that doesn't bring knowing What is Right amount to press to brake most effectively but without lock. That knowing bit comes from experience & skills
. Or in simpler method of trial & error, and then - from memory. Overbraked before that corner and hearing that ABS pulsing? Ease before (brake less, start braking quicker) during next lap. Drive more the car so that feedback from it is better felt and you know better it's limits, including it's grip & braking capabilities.