Minefield Big, Hard

Update: My best time is now 1:43. Here's the link to that run: • Minefield Big, Hard 1:...
The following is a link to speedrun leaderboards for Minefield: www.speedrun.com/minefield
The following is a link to the Big and Hard leaderboard: www.speedrun.com/minefield/fu...
In the above link, the best time for Big and Hard is 1:49 by driplup (here's a link to driplup's channel: / @driplup_ .
However, 1:49 isn't actually the best time driplup got as they got a time of 1:37 (here's the link to that run: • big hard new wr - 1:37... ). This for some reason isn't listed on the speedrun leaderboard for the big and hard settings but nonetheless, this is the time I've been trying to beat on and off.
I've recently brought my PB down from 1:53 to 1:49. This particular game had a pretty good start but could've been a little faster because there are moments where I slowed down throughout the end of the game and at 1:33 in the video, I could've been more efficient with my movements by moving left to solve the rest of the board (instead of doing what I actually did of moving to the right across a section that was already solved).
I do feel like I've been getting runs that have the potential to at least be close to (if not beat) 1:37 more often lately. So I will keep trying at this one of course and I will eventually beat 1:37.
store.playstation.com/#!/tid=...