smooth processing multiple section in one screen

very small task Requirement:- 1. Start a video recorder. 2. There is sliding drawer which open from left. 3. Drawer contains 3 sections. At a time single section list will visible. Section 1 is for hash of recorded video data and section 2 is for item which contains item of 70 lines. 3rd section contains a frame layout which contains a container of a view which show some values related to 2nd section. All these section are filling in every recorded frame. Or we can say time duration between filling data are in milliseconds. It means execution process will run in background and rest will be on main thread. This process will stop when user has stopped the video. 4. In all above execution list or record or navigation of drawer should not stuck or hang. It should smooth in all cases.