I think it differs from person to person and also for what youre looking for, I find I lift significantly more when I'm on low carb compared to no carb, fat and protein still make up the bulk of my diet but I have unrefined cane sugar in my coffee, raw honey on my meat and occasionally some fruit, rice, or potatoes.

this works very well for me after having tried carnivore for a few months, I'm still in ketosis so I get the best of both worlds. might not be preferred for all people but this makes me feel best :)