Holy shit. I just found the setting "space bar will always" and I selected "complete the current word." Then I tried it and typed something super duper fast. And Swiftkey got it all exactly right. And then I had an orgasm. Thanks guys!
I've had this phone for however long since it's debut and have hated android because I've had this problem so much. I feel a little dumb. Or if you had asked me minutes before I fixed the problem, I felt really dimb.