Xiaomi Yi Record Spike(?)

[kaanklky]

Hello everyone,
I'm using yi while I'm cruising with my motorcycle as daily. I didn't understand why that happened (spike?) to my yi because I didn't change anything on it. Yi can't record video smoothly, I update the firmware from this post but it didn't change anything. I'm also posting media info.

WHOPS: I noticed something when I tried to add video to my post; video was lower fps and has bounces between fpses(spike?). But it is looking fine when I upload it to youtube.

General
Complete name                            : YDXJ0141.mp4
Format                                   : MPEG-4
Format profile                           : JVT
Codec ID                                 : avc1
File size                                : 19.2 MiB
Duration                                 : 4s 555ms
Overall bit rate mode                    : Variable
Overall bit rate                         : 35.4 Mbps

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4.2
Format settings, CABAC                   : Yes
Format settings, ReFrames                : 1 frame
Format settings, GOP                     : M=1, N=8
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 4s 555ms
Bit rate mode                            : Variable
Bit rate                                 : 35.0 Mbps
Width                                    : 1 280 pixels
Height                                   : 720 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Constant
Frame rate                               : 119.880 fps
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.317
Stream size                              : 19.2 MiB (100%)
Color range                              : Full

Thanks for help.