VR question

[Ant78]

Hi guys

My PC setup is average and this is what I'm running -

GTX 1070
i5 4590
16gb ram
WMR - Dell visor

With ss at 1.5, sol and custom shaders on, and other setting at low -- medium, I can get a solid 90fps with just me cruising around kunos made tracks, and between 50-90 on modded tracks. Once I add ai, it all goes downhill....quick.

Without me throwing money at my PC, would it be worth my time changing over to the Rift s to take advantage of the ASW software? Would I see improvements?

or am I looking at big money upgrading motherboard, cpu and gpu

Thanks in advance