Comparison of the effect of different planet formation timescales. The planet setup is the same for both: two planets, positioned at 13 au and 143 au, with a mass of 8 M_Jup and 1.7 M_Jup. In simulation V, the outer planet started to form much later than the inner planet (Δ₁ = 0, Δ₂ = 600 Kyr, τ₁ = τ₂ = 16 Kyr). For simulation VI, the planets started to form simultaneously, but the outer planet gained mass significantly slower (Δ₁ = Δ₂ = 0, τ₁ = 16 Kyr, τ₂ = 600 Kyr).