Wiley had the 4th best combined 1500/1600/mile high school time in the U.S. She improved approximately 8.7 seconds (4:07.9 ==> 3:59.16) in the 1500 in the last 14 months (June, 2022 ==> September, 2023)
Sampling of some big imrpovements below. I don't know that any of the women below or Wiley have doped. I choose to believe no until there is definitive proof.
Jennifer Simpson improved more than 10 seconds every year for three years straight in the 1500 from 2006 to 2009. Even if you discount the first year improvement due to a better mile time earlier, the subsequent two years are huge improvements.
Laura Muir improved over 20 seconds from 2011 to 2012 and then another 10 seconds from 2012 to 2013 and then another 7.69 seconds from 2013 to 2014. She also improved 6.7 seconds in the 800m from 2012 to 2013.
Sarah Healy improved over 13 seconds from 2015 to 2016 then another 8 seconds from 2016 to 2017 and then another 10+ seconds from 2017 to 2018 (to a time close to what Wiley had in high school). She also improved almost 6 seconds from 2017 to 2018.
Kate Murphy improved more than 20 seconds (as best I can tell) from 2015 to 2016 and ran a high school time faster than Wiley.
Emily Mackay improved 18 seconds from 2018 to 2019 then 10 seconds in 2 years from 2019 to 2021 then another 8.4 seconds from 2021 to 2022. Finally she improved another 8.98 seconds from 2022 to 2023.
Athing Mu improved 15 seconds in the 800m from 2016 to 2019 and then another 6+ seconds from 2019 to 2021.
Alexa Efraimson improved 13 seconds from 2013 to 2014.
Nikki Hiltz improved 7.6 seconds from 2018 to 2019.
Ellie Purrier improved almost 7 seconds from 2018 to 2019.
Sinclaire Johnson improved 6+ seconds in the 800m from 2017 to 2018 and more than 4 seconds the following year. She also improved nearly 8 seconds in the 1500m from 2018 to 2019.
I'm sure there are many more. The bottom line is many runners have years with limited improvements and years with big improvements. Unless one is privy as to the goings on of training, injuries, etc. it is just a guess as to whether their using drugs. Some on the board believe that all elites are doping. I think the most are not.