Disk viscous and wind variability timescales for two donors and three initial separations over the disk evolution. Black curve: characteristic timescale of wind variability, $t_{\text{w}}={\dot{M}}_{\text{w}}/{\ddot{M}}_{\text{w}}$. Blue, green, and red curves: characteristic viscous timescale of the disk, t_ν = r²/ν, taken at the outer boundary of NS disk in the system with initial separations a = 10, 30, 100 AU, respectively. The initial donor mass M₁ = 7.0 M_⊙ and M₁ = 1.7 M_⊙ on the top and the bottom panels, respectively.