This discussion is maddening to me because it assumes that what colleges and universities should optimize for is test performance, full stop.
I've never been a strong test taker, but I gained a lot from my time in college and I've done objectively well in my career. The way colleges, universities, and some of the people commenting here are willing to limit access to education and life-changing opportunity based on one narrow measure is antiquated and narrow-minded.
If I had to give advice to someone who is motivated and interested in higher education but doesn't perform particularly well on standardized tests, it would be to feel no shame in doing whatever it takes to find your way through or around the arbitrary barriers like standardized tests that are going to be put in front of you.