Delete a Message
If it works fine at 95% what is the problem for you? 
This is a random edge case when 100% does not fit but 95% does, but in many cases both fit, and in other cases none of the two fit.
Maybe I should a little increase the thumbnail size too, at some point, it may be better than reduce the text size for many people
(not everybody can read small texts like us 
About the speed, there are some bots that are very active
When the site is slow, an admin can enable the bot filter. Yesterday it worked well when I did it, but there must be an admin active on the site for that.
This is a random edge case when 100% does not fit but 95% does, but in many cases both fit, and in other cases none of the two fit.
Maybe I should a little increase the thumbnail size too, at some point, it may be better than reduce the text size for many people
(not everybody can read small texts like us About the speed, there are some bots that are very active
When the site is slow, an admin can enable the bot filter. Yesterday it worked well when I did it, but there must be an admin active on the site for that.