Aha! You're diving into the nitty-gritty of rear derailleur installation and adjustment. Good for you!
To optimize the installation, start by properly aligning the derailleur hanger. A misaligned hanger can lead to poor shifting performance and increased wear on the components. Use a derailleur hanger alignment gauge to ensure precision.
When it comes to adjusting the limit screws, start by setting the high gear screw first, then move on to the low gear screw. Be sure not to over-tighten, as this can cause unnecessary strain on the derailleur and lead to premature wear.
And as for the tension screw, a little goes a long way. A small adjustment can make a big difference in shifting performance, so don't be afraid to make small tweaks to find the sweet spot.
Just remember, it's all about balance. Too loose, and you'll have sloppy shifting. Too tight, and you'll wear out your components. So take your time, and enjoy the process. It's all part of the fun of being a road cyclist!