I believe, it is not related to sensor timings. It is about exposure or shutter speed settings. According to your video, sun shines brightly, so exposure is very short, much shorter than 1/60s, which is required to avoid such flickering. I guess, this issue should not be observed at night, isn't it? If so, probably, you can solve this issue with some ND or CPL filter to reduce amount of light received by sensor in such conditions. Changing video fps or sensor timings are useless here, I think.