Scooter yoiu are confusing Mig17 with Mig19.
And neither served in Korean war.
The Mig15 vs F86 matchup is very similar IMO to P51D and Bf109K4 matchup.
The Bf109 held every majoir performance advantage, speed, accell, climb. Had much heavier hitting 30mm cannon but was hardder to aim. The P51 had better handling and user friendlyness and could dive faster.
The Bf109K did very well against P51D if flown by the LW few remaining experete. But the P51D would decimate low quality pilots in the 109K.
Just as happened in Korea where the USAF had thir way with the Koreans and Chinese but apprently suffered a negative K/D aginst the few specially picked soviet aces who fought in the war.