I just upgraded my project from Unity 2017 to 2020.3.19f1 version, however I found that our UnityWebRequest response time became so long. Here is my test using UnityWebRequest to Get www.yahoo.com built by an empty project within Unity 2017 and 2020.3.19. Does anyone also encounter this problem ? Here is
Picture of response time(in ms) showing difference between the two versions.