Freezing and low fps / 1.8.9 Forge / PLEASE HELP

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Okay so, when I join a SINGLEPLAYER world with forge my fps is fine, I don't lag and my frames don't freeze. BUT when I join a SERVER with forge my frames freeze, and my fps goes down rapidly down then back to 60 then back to 1 (my common fps is 60-90). The mods I'm using are:

Orange Marsh's animations 

Orange Marsh's HUD

5Zig

Optifine

Autotip

Keystrokes mod

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7 hours ago, diesieben07 said:

Does it happen without the mods?

Yes it does, it all started happening randomly. 

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Just now, diesieben07 said:

Please post the FML log without mods where the issues occured.

IDK how 2.