Like everything else in life,nothing comes in cheap or easy.
In most handguns shooting loads at or below 900 fps,I got vg to exc accuracy.Above 1000fps,different guns kind of show their preference;some sooner than others.Generally,when combined with hot burning powders(Titegroup,Power Pistol),accuracy tended to diminish at or around the 900fps mark by showing heavy deposits in the barrel(altough even at 1300fps they were easy to clean).And even there, accuracy was not bad;it just showed that while the limit of the lube was attained,it(the lube)did not let go all at once but only started to be less performant on a slowly declining way(like a car's peak power giving less HP past a certain RPM).
Yes Liquid Lube is good but one must experiment if he wants to extract the most out of it and it has got it's limits not very much like those of conventionnal lubes...exept that it is so much easier to put on and in some cases,it gives much more accurate bullets.