Here's another article on the topic of this research:
4 Ways Schools Help or Hinder Gifted Students
by Sarah D. Sparks
April 15, 2019
Education Week
Vol. 38, Issue 29, Page 8
Published in Print: April 17, 2019, as Studies Show How Schools Hinder or Help Gifted Students

Of particular interest to me was one of the "Related Articles" listed: 5 Ways Gifted Students Learn Differently
by Matthew Lynch
June 13, 2016
Education Week
Originally Posted by article
There are five ways in which gifted students tend to learn differently from their peers:

1. They learn new material much more quickly.
2. They have a better ability to remember what they have learned, which reduces or eliminates the need for review.
3. They have ability for abstract or complex thinking that their peers do not have.
4. They become focused on specific topics and are very passionate about them to the exclusion of other topics and subjects.
5. They can take in many stimuli at once, knowing what is going on around them while concentrating on a specific task.
How many gifted programs are built around these traits?