MiG-35S's rd33mk engines underperforming at high alt?

[sausage_wallet]

The Mig-35 loses lots of thrust at high altitudes even compared to the Typhoon and F-18E. For example, while the F-18E loses 3 tons of thrust every 3,000 meters, the MiG-35 loses more than 4 tons (5.4 tons less at 3km than at sea level). Just want a better source for this than “Russian engines are always worse”

[AlvisWisla]

The thrust is likely correct, as the Mig-29KR & 29M, the Mig-35S likely has accurate thrust as well.
Also losing a lot of thrust at higher altitudes is normal, as seen with the F-16 losing even more thrust.

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