Bukkit

What steps will reproduce the problem?
Installing the plugin and running scheduled announcements normally.

What is the expected output? What do you see instead?
Every time one of my scheduled announcements posts to the chat, the server appears to hang for 3-5 seconds, appearing as a massive lag-spike to everyone playing and sometimes making people time out.

What version of the product are you using?
Latest version.

Do you have an error log of what happened?
No, except for the "Can't keep up! Did the system time change, or is the server overloaded?" console spam that occurs as a result of this.

Please provide any additional information below.
Using /announce broadcast or /announce say does not reproduce the problem. Only announcements that appear on the timer/schedule will cause this to happen.

I'll look into this. Have a few ideas as to what is causing it.

Can you provide any additional information to assist in debugging?