Hi
What are you asking as im confused. Are you asking if DVI DL can deliver 144Hz properly? Or are you asking if 144Hz is adequate enough for a frame rate higher?
DVI DL is reaching it's peak bandwidth for 1080p 144Hz, if the monitor supports it that's the maximum DVI will go. However at 144Hz playing a game with more fps, even if screen tear is happening, it will be very difficult to see with such a fast refresh rate.