One of the things you can do to the Wiffie, is to lose the two main capacitors and replace them with Panasonic low ESR 105c rated units. Add a very quiet fan to move more air across the vertical inductors.
"Improving Perforance" means a marginally designed power supply is going to be even more greatly stressed. I would keep this in mind. Converter "designers" love to save money by using morphadite lower temperature crummy ESR caps and low voltage low amperage transistors and rectifiers and marginal air movement. Putting a Turbo on a Yugo may not prove to be a viable option.
