How to get 3 times better than Bumi when they already score 100%?

It's too late. 20 years from now there won't be enough of the minorities to matter. By then you'll see incidents involving the descendants of natives vs naturalised instead.

Remember your school projects to do your salasilah keluarga? Keep those records handy, you'll never know you might need them to prove that you're not descended from immigrants, like what is used against the minorities today.