If I had the source code to all games, like the Hellblade devs have for theirs, yes. :)
Seriously: applying G3D like vorpX doesn’t allow for many optimizations that game devs can apply to their games with full source code access, so that’s an apples to oranges comparison unfortunately.
Like said above, with vorpX in G3D mode games can easily become CPU bound. In a CPU bound scenario adding more GPU horsepower doesn’t really do anything. Even with a GPU 10x as fast a game would still have the same framerate if CPU bound.
The best you can do is reducing graphics details in such a case, especially everything that reduces the amount of stuff that gets drawn to the screen. NPC/vegetation density, view distance, things like that.
Hope that answers your question.