Yes, once you set a “winner”, results will be applied in real-time.
There are two ways to do this:
A. Use View results button:
1. After you click View results, you will be directed to this page, click Set the winner
2. You will be asked which variant you'd pick as a winner in the next window pop-up, once you've picked one, click Set. Your winning variant will be applied to your store in real-time!
B. The second way to do this is to click on the three dots beside the View results button and just click Stop & Choose winner.
You will be asked which variant to choose and click Set, and you have a winner!
Keywords:
How do I check the results of my test?
Can I end and select a winner immediately?
How do I set a winner?