Performance for everything under Yosemite is terrible for me. I won't upgrade my main work-mac until I'm convinced they've gotten Yosemite more stable and bett

Performance for everything under Yosemite is terrible for me. I won't upgrade my main work-mac until I'm convinced they've gotten Yosemite more stable and better performing. This looks like a promising tool, but its limit platform support kills it for me, for now.