This article explains the maximum number of messages that the Kiwi Syslog Daemon can handle.
All Kiwi Syslog versions
The licensed version of the software can handle around 2 million messages per hour and the free version handles about 300,000 per hour. The licensed version has been regularly tested to handle 400-600 messages per second while logging to file.
The licensed version has been increased to have a 500,000 message buffer, while the free version has a 500 message buffer.
If you suspect that you may be losing messages, Go to the File > Debug options > View message buffer option to check that the Message Queue overflow value is always 0. This indicates the amount of messages that have been dropped.
If you are running the Service version then this same information can be found from the Manage > Debug options menu.
To decrease the amount of messages being displayed, modify your device configurations to only send messages that meet a set level.