Ideally, you want vtec to engage where the low cam torque curve and high cam torque curve intersect. If it is engaging lower than that, it will feel sluggish/boggy until vtec was supposed to engage. If it is engaging higher than that, you will feel it but the sudden jump in the torque curve will cause a power loss overall.

Unless you are running relatively aggressive cams, you are losing a lot of power and 1400 rpm in which you could be in vtec but aren't. I would suggest having a proper GSR map burnt onto the chip.