wah ji lpg pe a hi gai phr 
get ur settings done properly like by khattak cng, he adjusted that screw n from kit as well from right side by moving the right tyre
i drive quite slowly 
but ever since the setting when i am driving on ac which he told me that it'll be a little slow on ac, khair i shift gears at 2 or 2.2k rpm but after 2 3 shifts it kicks down then i let it shift at 2.6k rpm esp on uphill road where i keep driving slowly to avoid burden on engine as well as fuel saving
today i got the idle rpm adjusted again, n then twice it happened at turns that when i pressed race it first refused n then moved like no response to my race coming infront of the cars coming from left :-# n then started to move
did u removed the air blockage if u had any?
i didnt tried flooring it, i havent really shifted above 3k from long time, n even now when i have grown tired of slow driving n shift below 3k as fun, still i take it slowly above 2k instead of quick shifts or sudden race so no idea if i'll face the same but em sure proper setting should fix ur issue n u'll get good avg as well
also if u floor suddenly at low rpm on auto then it sometimes kicks down to lower gear n many a time it kicks down twice so i avoid that, it shoots the rpm way higher, a thing that u dont face in manual car, thats why i even pick speed slowly as sometime it just likes to kick down itself instead of picking speed in same gear
if u havent got the plugs n air filter cleaned, get that done too so u get a good avg n stick wid it 
btw i mostly shift at 2k n not above it n i wasnt facing this issue, infact pick as a whole was just like petrol