I know some pc settings make impact on vr side in some aspects, i.e. pc graphic resolution on vr window text fidelity. However, your case is very extreme.
My rig is a gaming laptop of i7 9750, 32GRam, RTX2060, etc., the GPU is certainly inferior to yours, and my setting is largely based the below linked post while some in game setting are downgraded to be adopted to my less powerful computer.