Give all your feedback at once. Sometimes that just really isn't feasible or efficient. Happens often enough I glance over a PR to see it has code style issues

Give all your feedback at once. Sometimes that just really isn't feasible or efficient. Happens often enough I glance over a PR to see it has code style issues or obvious mistakes in the code or architectural problems. Especially in those last cases, when the implementation still needs to change, I'll just point that out, then later on revisit and do a more thorough review. Because it makes no sense reviewing things which might not even end up in the final PR.