More than likely your not, unless you flashed a voodoo kernel and manually enabled lagfix.
The stock ED01 ODIN packages don't include voodoo kernels, to my knowledge, but double check with Landshark on his thread for absolute.
You can also boot into Recovery, choose voodoo from main CWM menu, and you should see something in white writing at the middle/bottom of the screen that says the following if YOUR VOODOO:
Voodoo Lagfix is actually : enabled
next boot : enabled
Options:
/system lagfix conversion : yes
debug mode : no