JaiSh123, yeah, I am. In fact, I specifically wrote about that in my comment with archery tips. It's dependent on the game difficulty and the armies that are chosen. Letting arrows loose on English archers with strong defense in hard mode can be a pain, for example. What you've described surely can happen, but not in every situation, so I really don't know how you're getting those numbers unless you're always versing the Vikings in easy or medium (since their low defense will allow for more damage, but they also deal good damage themselves). Adding on, the power used in a shot doesn't affect the damage dealt either (or at least not very significantly). I may be mistaken with that, but that's just what I've observed.
Follow up commentary about my "parade of death" method (might be in the see all comment section now). In Fulford and Stamford Bridge, line up your troops behind the natural impediments. The enemy won't be able to pass through the natural impediments but will seemingly just sit there. With six archer units all in a line, you can take out the enemy archers first and then the rest. Since the enemy won't be touching your units at all, you can get away from a battle without any deaths. Note that a shield wall might be sitting around as well. Take that out after the main line is taken out (including the king). Line up your archers with the enemy shield wall, and with their morale severely lowered, you should be able to take them about with only 1-4 volleys.
Tips from someone who's played this for years: 1) Hordes are not that difficult. Orbit around the pixels and constantly shoot once they gather in pack. Wander around in the meantime and keep your shots pointed ahead of you. 2) The triple shot is crucial. You have to shoot pixels at almost all times. 3) Don't stop to collect paint. You'll get it eventually considering you're not sitting around. As I said previously, you always need to be shooting pixels to keep your triple-shot as long as possible. Personally, I can keep my focus on both pixels and paint, but if you find that difficult, focus on killing the pixels. 4) Don't think that being hit once is okay. Health is precious, and as you keep progressing, you'll realize that even a couple hits will be enough. Hell, I sometimes even quit if I make a dumb move and get hit early. 5) Experience is important. Predicting levels, especially the hellish mid-levels that just pop right at you, can help greatly.
Archery Tips:
1) 45 degrees is about the maximum your archers can elevate their shots and still shoot further. Past that, their arrows will most likely fall short.
2) When the enemy is close (especially on flat terrain), it is better to shoot upwards in a parabolic/arching path. Trying to shoot with less power than the max is risky, although this is from my personal experience.
3) Practice shooting by setting up a large battle and lining up a bunch of archers. You'll be able to learn and remember the elevation and power needed to hit specific points.
I've found a very exploitable configuration: line up your archers, varangian/huscarl/men-at-arms, and the king. With this, the AI is tricked into lining up, allowing you to take easy shots at the enemy king and other troops with your archers. That being said, do not march the line forward; stay in one place, shoot, and fortify. I typically put the archers right behind a single unit of varangian/huscarl/men-at-arms and rotate that first rank whenever need be. Following up on my comment about archers, I've found that playing the Normans with this method is best; their overall balance allows them to make deadly shots at enemy archers and withstand some damage themselves. Obviously, take out the enemy archers first with this method. Using this "parade of death" method, I've been able to essentially break the game and achieve the "king" rank in nearly all battles.
If there's one thing about this game that really grinds my gears, it's the sheer deadliness of enemy archers. From all I've observed, no matter what game mode you are in, they can expect to get 60 kills at the least when shooting at my own archers. You don't get those numbers anywhere else other than right out of easy mode, and even in easy mode, the enemy can still get these drastic kills. Not to mention that for some reason, they are able to shoot across the whole map with ease whereas my arrows drop before the last handful of squares.