So, I know is not that scientific but I tried to replicate what you shown in the video and the only way to get similar performances is to set D-TO with a max temp of 28° C, higher assumed temp lead to what I described above, no way at all to perform a D-TO 1 or D-TO2, I reach the other runway threshold to get to the VR.
With a D-TO and a 28° C assumed temp it requested almost 10.000 ft to get to the VR, I don't remember the grossweight, roughly I had 60% of payload and 80% of fuel just to give few numbers.

Could you try to do the same with a D-TO1 or 2 and 40-45 ° C assumed temp? Just to see if it takes long to reach 80 kts.
Anyway I don't have the same performances you had with a 35° C assumed temp you used in the video so there's definitely something wrong here, I wonder what...