Something I've noticed is when kill cam begins, arrows actually have a lower trajectory than they otherwise would. For example, and a good place to witness this is Embershard Mine (located next to Riverwood) as it has enemies that can either be killed on a bridge or from a bridge.

When shooting the enemy on the tall bridge, from a sneak position, in the large open section, my first two arrows hit without any issues whatsoever, yet on the 3rd shot, when kill cam comes into play, my arrows always, always hit the bridge. The same happens when you first enter the mine. You can easily snipe an enemy from sneak, but whenever kill cam is used, it doesn't make it over the hand rope, yet it does when kill cam isn't used.

Edit: i would like to emphasise the point that this is when i'm in sneak mode. I have to come out of sneak so the arrow will travel over the rope barrier.

I have noticed the kill cam seems to make me miss almost every other time it's on, unless I'm undetected. When detected It will still come on, but will not be accurate, I don't think the kill came should even come of if I'm going to miss, it just shows me svcking in slow motion...

I've noticed that too a few times but what's worse is that sometimes coming out of the animation, the bow sticks in the drawn position and you have to re-equip it. This is very bad if you're using a bound bow since you may not have enough magicka to do it.

I am glad to be rid of killcams. When it comes to sneaking, there is nothing more critical than knowing if you've alerted someone. When I can't see my HUD and react to what's going on, it creates a problem.

I also had a lot of trouble with killcams when I had a mage character. My spells would miss and hit friendlies. And it wouldn't hit them a little bit, either. It would continue until my companion died or my intended target killed me.

Kill cams are terrible, we need a toggle.

I have problems with the cams and using magic. the kill cam will often show up when i actually missed the target. One time -- and thankfully only one time so far -- The kill cam's erroneous activation froze me in place long enough for the target I missed to stab me and kill me.

That wasnt fun.

It seems rather ridiculous that they cant add an option to turn it off. Especially after the first patch they said would fix things...didnt. We know they can cause for a long time there were no kill cams for magic and archery. Yet they force us. For no reason.

Ive found that trying to understand bethesda recently has become kafka-esque. Thats not a good thing.

I've not had your problem, but I don't like the kill cam when I'm fighting multiple enemy's or all it shows is the dang wall.

I don't use Archery much with my characters so the few kill cams I have gotten have been great. It just makes me feel awesome. I usually throw my hands up in the air and yell exuberant things.
I have gotten one or two where I've missed but... Whatever.