The performance should be much better now. In the ARK dev kit the performance was still poor after several optimizations. But when I tried it in the game, there was no longer an fps drop (I would say max 1 fps). I hope this is not just the case on my machine and I would really appreciate your feedback.

Added a toggleable minimalistic mode that only displays tiny bars, without numbers, level, name and all the other information.

Re-added the keyboard shortcuts Alt + F6/F7 and also added Alt + F8 to toggle the minimalistic mode. The main key for the settings window is still F5 (without Alt).

Changed the shortcut for the main window to F5 only (without the alt key).
Added options to offset the position of the bars in 3D and 2D space.
Tried to improve performance a little bit (but it did not really improve, I will have to refactor some parts of the code).

Fixed positioning error when resolution scale was lower than 100%.

User settings can now be saved and are automatically restored in the next session.

Added a settings window (Alt + F5). Some of the existing keyboard shortcuts may be removed in the future.

Changed [Alt] + [F6] to enable/disable health bars for wild dinos only instead of enabling/disabling the entire mod. So now it's possible to display the bars only for tamed dinos.