If named something else, open the in-game developer console (typically the ~ tilde key) and type: exec aim.cfg and press Enter. Disclaimer: Aim CFG vs. Cheat Scripts
Removing frame-dropping clutter to keep your eyes on the enemy. cfg aim css v34
cl_interp 0 - Forces the engine to calculate the lowest possible interpolation, aligning enemy hitboxes perfectly with their player models. If named something else, open the in-game developer