Hey buddy, as an owner of various Kershaw Speedsafe models, I can tell you that each knife is different. Some need more pressure build-up, some just fly out like crazy, and others need to be broken in.
Is your blade centered? Is the pivot too tight? Are you gripping the knife properly?
I've owned several Cryos, a couple of Cryo IIs, and a few Thermites. These budget friendly Hinderer-designed pieces are great. Try flicking it constantly for another day or two, and if that doesn't help you may want to take it apart. If you're not satisfied after a couple of days then go ahead and try and exchange or send it out to KAI to take a look. They offer excellent customer service!