I often find myself using pressure to compensate and thus get irritation, and when I use proper technique I have to go 4 or 5 passes to get a close shave
It can be difficult to keep the angle consistent throughout the shave, finding the angle may seem easy but to maintain that angle throughout the shave & all over the unequal contours of our faces can be a long learning curve especially using milder razors, experience will get you there.
Changing angle from steep to shallow & keeping that angle locked, might help a little with efficiency but not alot this razor is just made this way, its how you do the strokes & your technique that can get you a smooth shave, getting to know your skin & the direction the beard grows overtime will help, knowing what kinda strokes/passes implemented with techniques work for you, e.g for my 2nd pass i attack the hair across the grain from a direction that is just a tiny touch past across but between against the grain so it eliminates more, hit from different angles, knowing your face & what works & what doesn't overtime will make everything easier with any razor you use.
Some razors I can't get a BBS with they're too mild like the Wilkinson sword classic, the blade doesn't make contact with my skin enough, I need unscrew the head a little to make it more efficient (which is dangerous) but with this razorock DE1 being mild its head profile design I can utilise it & make it work, and shave very quickly.
Some razors just don't work for some people, there is a lot of variables apart from the razor itself, the blade you use, shaving cream or soap, length of beard, I say do what works for you & what is comfortable & joyful.