In my survival LAN worlds my bow has not been working as of late. Before I use it I will be at about 125 fps, then when I use it it drops down to 4-16 fps. It also happens on many servers. Can anyone explain why this is happening
Kylekrat is your bow enchanted? If so then to test try a normal bow see if the issue goes away. I have heard of people in 1.5 having fps drops that has been attributed to the special effects on items equipped in hand.
[edit]
It appears this is a known issue. There is an open report on Mojira here:
https://mojang.atlassian.net/browse/MC-10323
by c0yote
I tried it with terrible results. I gave my wife my glasses for a second, a creeper showed up and now my wife is pregnant.
Stupid 3D..