If you have 5 minutes then you can't as you say :
> Then I will dig deeper into those things myself ...
So my point is I don't care if it's coming from LLM or a random blog, you won't have time to know if it's really working (ideally you would want to benchmark the change).
If you can't invest the time better to stay with the defaults, which in most project the maintainers spent quite a bit of time to make sensible.