Have you played an FPS at the pace of DOOM before? 60FPS is vital and it should be aimed for as an absolute minimum. 144FPS is ideal but harder to achieve.
i tried it at 144fps but it looked too floaty and uncinematic
the game looks much better at a smooth 28 than 144. your mind does a better job filling in those frame gaps than the designers do. much like horror movies, the mind's imagination is better than what the silly game designers actually fill it with. they should have just locked it to 30 and called it a day rather than waste time with their inferior optimizations.