Low framerate on linux

[vikeyev]

I've been having really bad framerate problems on my linux installlation of this game.

My specs:
 

Processor Information:
   

AMD FX6300

Operating System Version:

    Linux Mint 17.1 Rebecca (64 bit)
        Kernel Name:  Linux
        Kernel Version:  3.13.0-37-generic
        X Server Vendor:  The X.Org Foundation
        X Server Release:  11501000
        X Window Manager:  Mutter (Muffin)
        Steam Runtime Version:  steam-runtime-release_2015-01-06
 
Video Card:
    Driver:  ATI Technologies Inc. AMD Radeon HD 6900 Series
 
            Driver Version:  4.4.12967 Compatibility Profile Context 14.20
            OpenGL Version: 4.4
            Desktop Color Depth: 24 bits per pixel
            Monitor Refresh Rate: 60 Hz
            VendorID:  0x1002
            DeviceID:  0x6718
            Number of Monitors:  1
            Number of Logical Video Cards:  1
            Primary Display Resolution:  1920 x 1080
            Desktop Resolution: 1920 x 1080
            Primary Display Size: 20.91" x 11.77"  (23.98" diag)
                                            53.1cm x 29.9cm  (60.9cm diag)
            Primary VRAM Not Detected
 
Sound card:
    Audio device: Realtek ALC889
 
Memory:
    Gskills RAM:  7943 Mb
 
Miscellaneous:
    UI Language:  English
        LANG:  en_AU.UTF-8
        Microphone:  Not set
        Total Hard Disk Space Available:  360322 Mb
        Largest Free Hard Disk Block:  20735 Mb
 
I'm struggling to hold 60 fps and as soon as I hit werebeaver mode it sits on 30 fps (occasionally hitting 31 and 32 :/). Frame rate problems happen with and without mods, it also happens in don't starve together, but it's a beta and everyones getting that problem atm. Any help I could get would be greatly appreciate. If you need any more info, just ask.