Separate replies from posts of users you've subscribed to in the Interactions page
The "mentions" tab on the Interactions page contains both posts from subscriptions and replies from other users on their posts. Being subscribed to too many users can lead to missed replies between the other posts in this tab.
An improvement could be to keep the posts where the user is mentioned in the "mentions" tab and the posts from subscriptions into another tab named "subscription" for example.