The redirects trigger avoidable roundtrips on the network and increase the page loading time.
The HTTP redirects allow to specify that the desired content is accessible from a different URL. They trigger a new HTTP request to retrieve the target resource and return a HTTP code between 300 and 399. See the specifications of HTTP redirects.
How to solve the issue ?
Allow the user to directly access your content without redirects, or determine and improve what causes these excessive loading times on your redirects. See recommendations from Google.
1 redirect was too long to access the right content:
http://www.example.com/ redirects to https://www.example.com/ (225ms)