In short: modern Linux systems (since Linux 2.6.30, released in 2009) already use relatime, which should give you a really fast performance boost. That means you don't need to tweak your /etc/fstab file and can rely on the relatime kernel default.

But if you're looking to tweak your system to get maximum performance, disabling atime is still a valid option in 2020.

This performance tweak might not be very noticeable on very fast modern drives (like NVME or a fast SSD), but there's still a little boost there.