The slider from the react-native is not good for video/audio players. If you slide it while the player is playing the file, It will jump a lot between where the file is playing right now and where your finger is, producing very bad UX. this libray uses react-native-reanimated and react-native-gesture-handler to produce 60 fps animations and stops jumping the slider while sliding.
first install and link react-native-reanimated and react-native-gesture-handler and then install this packeage. ( I know you can install this packeage first :) )
yarn add react-native-reanimated-slider
or
npm i -s react-native-reanimated-slider