I'd wait to see if you think it is loud; this definition is highly debated by most people...and is personal preference. Loud to some is barely audible to others.
That being said, if you wanted to help temps on it a bit, get some decent thermal paste, pull the stock cooler...clean off the stock paste. Apply the new stuff in correct proportions and reapply the stock cooler. This almost always will give you ~5C cooler temps which is great...and can help keep the fan from spinning up. I'd go that route before looking into other options.
Also, assess your case airflow- the reason the fan spins up is due to the need to pull in more cool air to lower the temps. If you have great airflow, you are giving your components cool air for the coolers to work as intended. You can have the best coolers in the world, but without the airflow, they still will run hot.
To test- pull the side of your case, blow a house/desk fan on high into the case. Run your benchmarks, monitor temps, etc. Compare to temps you've been seeing in the past. If the temps go down; you have an airflow problem and should address getting more air running through your case. If temps stay the same, you might consider better coolers...or you are just fine as-is.