Internal CRT Tv VGA Output - Does it lag ?

I'm organizing a local ranbat/tourney here in my city and I'm planning on doing a Head-to-head marvel vs capcom setup.
I have a TV, which I'm pretty sure its a Samsung 21" crt CL 21K40MQ and the TV has Video Output.

I was planning on plugging the DC in the video Input and them Outputting the signal to another Crt.

Does this setup/config is known for lag issues or is it perfect ?