When you say "performance mode" are you referring to GPS mode? I'm confused
No... There are 2 modes for flying - Performance and Sport. GPS is the global positioning system that the drone uses for flight.
Performance is what most beginners should use. In performance mode, your Mavic will have obstacle avoidance systems working, and your top speed is about 22mph. It's somewhat difficult to crash...I said Somewhat... [emoji12]
Sport mode is much different. In sport mode, there is NO obstacle avoidance and the top speed is much greater (about 40mph) ...not to mention that the sticks are much more sensitive...if you're going too fast and accidentally head right for a tree, she's a goner... You're most likely going to crash... And crash hard...no obstacle avoidance to stop you...
Breaking distance is also much different in the 2 modes. The distance it takes for your Mavic to come to a complete stop is much greater in sport mode...think about it... In sport mode you need more space to come to a complete stop.
GPS is the positioning system that is used to fly the Mavic. Much like the GPS in a car, it's used for precise locationing of the drone. Both performance and sport will use GPS for flight.
If you look on the side of your controller, you will see a switch to change from performance to sport mode.
So, in short, performance and sport modes determine how the Mavic behaves during flight, GPS is how your drone (and controller) knows where it is...
Hope that helps.
I'm a big believer in reading the manual several times...I've been flying for several months, and I am definitely not ready for sport mode...