I find the swift keyboard is better than the regular one, but good lord is the autocomplete terrible. It adds 's to words so often even when my finger never wen

I find the swift keyboard is better than the regular one, but good lord is the autocomplete terrible. It adds 's to words so often even when my finger never went close to the S key, it suggests "ang" as often as "and", and I'll often have something entered correctly, but then adding a word will cause the word three positions back to change. I could go on. I really don't get why it's so bad when my android from a decade ago basically always entered what I was thinking.