So the issue I'm experiencing is a little difficult to explain. The health bar on the target / enemy appears to be locked at a certain maximum value and doesn't scale for different enemies. For example, it works properly on weak enemies such as wolves and horses, but when I attack a stronger target with more health, they will take several hits without the health bar decreasing, until their total damage reaches a certain point and then it works as normal.
My computer specs are under this spoiler, I know that I'm running on a potato but it still gives me a consistent 35 fps and I'm fairly sure that isn't the issue:
I'm running the most up to date skyrim with all three dlcs. I use NMM and LOOT to sort. Mods are under the cut:
Sorry again for the particularly wordy description. If you don't quite understand what the issue is, I'll take a fraps video of the bug and send it in, but I'd like to avoid that because it's a bit time consuming and i'm pretty busy at the moment. Thanks in advance for any help that you can give!