Key Combi Stops Working

I noticed that event hough my Internet connection is pretty awesome and my computer and graphics card is fast, I still experience lagg but only on WynnCraft and I guess the texturepack is a key component here.

Maybe it is caused by lagg but my key combination L,R,R stops working every single time a wolf gets too close. On a certain distance there is no problems. I also noticed that once in a while when other monsters comes very close the key combination sometimes stops working even though I have Mana.

Any ideas?

 

I believe it has to do with interaction with Minecraft mobs.

I've experienced something similar to this, where sometimes I'll do a double right click if I click on a mob. My best advice is to look away or to the side of a mob when casting, before flipping back to it as you do the final right/left.

 

Thanks -I'll try that :-)