The use of antiferromagnets in magnetoelectronic devices as counterparts of ferromagnets is a new, rapidly developing trend in spintronics that leverages antiferromagnetic (AFM) magnons for transmitting of spin currents. Van der Waals (vdW) antiferromagnets are particularly attractive in this respect as they possess tunable magnetic properties and can be easily integrated into spintronic devices. In this work, electron spin resonance (ESR) spectroscopy is used to assess the potential of the vdW AFM compound CuCrP₂S₆ for magnonic applications by exploring the magnetic field (H) dependence of the spectrum of magnon excitations below its AFM ordering temperature T_N ≈ 30 K and the correlated spin dynamics above T_N. ESR reveals prominent ferromagnetic (FM) spin correlations that persist far above T_N suggesting an intrinsically 2D character of the spin dynamics in CuCrP₂S₆. Most interestingly, at T < T_N, CuCrP₂S₆ features two non-degenerate, i.e., distinct in energy AFM magnon modes at H = 0 which can be tuned to the FM type of collective spin excitations with increasing H. These remarkable properties are favorable for the induction and control of unidirectional spin current in CuCrP₂S₆ and suggest it as a new functional material for magnetoelectronics.