I won't take credit on the video but I find this solution to be very quick and efficient.
Simply fast travel to The Strand and follow the track/path the video does since the path has lots of destructible obstacle. Doing a lap of the path could increase 1.5% or less which is pretty good.
UPDATE: Thanks to HolyMolster, PunkRawkSoldier and RSDAY on additional information, this solution works on the Jack the Ripper DLC as well only that you can't do it at the same location as in the video or else you'll get desynchronized.
UPDATE 2: Original video is gone but replaced with new video by VidGamiacUnlocked. Thanks to FlawlessPine483 for the link and VidGamiacUnlocked for the video.
p.s. please reply on the negative so that I could improve this guide. Thanks.