Today there was a slowdown in media uploads and general media access. This was caused by an issue with my Object Storage provider but it's solved: https://public-cloud.status-ovhcloud.com/incidents/2nt6rj7dl6vm
Also, I would like to let you know that currently there should be no issues on Masto.host hosted instances and the performance degradation experienced last week has been completely resolved.
Sorry for any trouble you might have experienced and unless there is a higher flood of new users/activity we should be good :) Thanks ?