That's a pretty dickish opinion to have. Plenty of 3d games run well on lower-end PC's and I even have a friend on steam whose computer is literally a brick and it manages to run Warframe without dropping frames. I would say if OP can't optimize, that he should look into tutorials on how the Unreal Engine does optimize.
The demo is pretty bare-bones, and I don't think anyone should rush to fund it quite yet. Funding something like this with little to no substance in the demo (unless I'm wrong, you actually removed the sex and replaced it with a "you died" text and smiley). It looks good with the character having pretty good animations, but that UI is unrefined and the lack of sex scenes or, at the very least, some story content makes it difficult to get behind this. If I were Kevin O'Leary and ULMF paid me to analyze things, I would say that this would be a bad investment for anyone who wants to fund a project.
Nothing against you, and I hope you continue with this project. I just don't think with what you've produced that the project is worth backing or getting hype over just yet.
