Max speed, yaw rate, rate of gimbal tilt and other parameters are separately adjustable for each of the three flight modes. Have a look at the manual. It sounds like the settings have been tinkered with.
Your "Expo" settings have probably gotten changed. In main DJI Fly screen, tap the three dots in the upper right corner, then select Control, then select Gain & Expo Tuning, and adjust all three flight modes to your liking. Hope that helps!
My Mini 3 doesn't seem to have a Cine mode. It seems to fly as fast as it does in Normal mode. My Mavic Mini, on the other hand, exhibits a distinct difference in speed between Cine, Normal and Sport modes.
Anybody else experience this? Is there...