Every commit and pull request (PR) you put out should have a singular focus. Don't just dump your entire feature into 1 massive 2,500 line PR; it's extremely difficult to review and you are robbing yourself of real technical feedback.
A good average range for a PR is 50-250 lines of code. If it's substantially higher than 250, there's a good chance your PR is simply too big.
Breaking up your pull requests will take more time initially (10-15 minutes), but it's completely worth it as it saves you time in the long-term. Smaller, more focused PRs get better feedback and are merged in faster.
Having this habit alongside all the other good code review behaviors (linked below) is one of the most straightforward way to get a stellar performance review as an earlier-in-career engineer. Conversely, not following these guidelines is one of the easiest ways to have bad performance as a software engineer.