One of the blog posts on my parenting blog ranks well and gets more than 2000 visits a day. It was published last year and over the time various visitors commented queries and my long replies to them increased post's length. now as the comments are around 350, it is taking 28 seconds to load and I am worried that might affect the ranking. i.e. in near future it may reduce the ranking.
My queries are
1. Will archiving/deleting these long/ all old comments affect the ranking? What can be done? like including them in contents instead of removing?
2. Can increased load speed affect the ranking of the post?
NOTE: Need it for desktop only as the mobile has AMP view
Blogging Experts' valuable advice requested.