Hi, thank you for your review. You’re awesome.
The SERP is not affected as Google is looking for the SEO content and not for the paths.
The loading speed is important and this is why we try to make everything load fast even if it’s a lot of security filters and changes in the background.
You can control the redirect for /wp-admin from Hide My WP > Advanced > Redirect Hidden Paths. We will make it more visible in the future.
Thanks again,
John