A problem I've always had was I had trouble telling when to let go of the button to cast a spell. So I tried mods that did away with the magic charge time, which worked, but made magic overpowered. By a lot. But then I realized that a more simple fix would be to replace the sound it makes.

It only takes about 0.5 sec to actually charge a spell, but the sound for charging is about 3 sec. So unless you are staring at your mana bar, it's so hard to tell when it's ok to let go. And if you are like me, you end up holding it until you HEAR it stop charging.

This mod replaces the charging sounds to better match when it's ok to actually cast it.
A simple but effective fix. For myself, it makes playing a mage a whole lot more fun.

Preview. The first half is vanilla and the second half is my mod.