Unfortunately, we don't have any performance metrics. We only have couple of satisfied customers.
If you want to test how speedy our terminal is, just download a trial package, install it and run TerminalClientWinForm sample.
I suggest you to run some graphical application such as Midnight Commander (command is 'mc') and an application with a lot of output such as command 'ls -laR /' (to stop the command press CTRL+C).
Then you can decide, whether our Terminal emulator is sufficient for you.