@damsonwhufndthishttps://prnt.sc/1x844gx
2 KP and top 5+ will give you a lot of points (relatively speaking) in gold = 60 - 24 = 36+ which for that performance is a lot in my opinion.
In Plat accordingly, you would get 24+ which is still a lot compared to one split where I did have to rat out most of the games, and literally, my progress was +4-8 points per 20 min of "gameplay" = running around listening to my newb teammates bashing me from the underworld and evading enemies while looking at some possible 3rd party KP.
And the fun starts in Diamond why it is also very hard to rank up there because with 2 KP and top 5 here you will give only 60 - 48 = 12+ points and getting either in Diamond is considerably harder because people understand that placement matters much more as there will be only a few exceptions where you will have max KP games (for players who are not Masters+) that might mitigate damage even if you place sub TOP 10. Thus top 5 usually is zone 3+ fights between ~10 teams in it or something like that.
Sidenote! Yesterday had one of those exception days where somehow in many games only 10 squads were left before even zone 1 closed but that usually indicates something fishy which I also saw - a guy in Diamond had 17 KP (11+6) and he kept killing people even when I died and disconnected. But that does not happen very often in my experience thus I am amazed when I see so-called "warzone pros" or what not aka <100 people in higher than D4 ranks, even D4 actually would be a surprise for me in case totally new player with sub 100 level be there already - talking about efficiency.
Finally the math I think we need to pay attention here is win/loss ration and RP change.
In Gold say you have top 5 with 2 kills = 36 points, you can't lose that in one really bad game, must have a least two to negate the progress.
Platinum one top 5 2 kill game is already negated by one really bad game.
Diamond one top 5 2 kill game is giving you 1/4!!! of what one bad game will deduct from your progress.
In other words, on Diamond you must be on Top5 2 kill game pretty much every time otherwise 1 bad game automatically means 3 steps back or you now have a need to perform a very high KP/placement game that is even harder mission than TOP5 2 kill.
That is also my experience there, I remember one day when during the day when there are in my opinion less skilled players (kids) playing I gained ~400 RP in like 3-5h, took a break, resumed playing in the evening till night and lost 500+ in probably less than 3-5h. That rarely happened to me in Gold or Diamond.