System:    Host: blad-pc Kernel: 4.18.3-1-MANJARO x86_64 bits: 64 Desktop: Xfce 4.12.4 
           Distro: Manjaro Linux 
CPU:       Topology: 6-Core model: AMD FX-6100 bits: 64 type: MCP L2 cache: 2048 KiB 
           Speed: 1541 MHz min/max: 1400/3300 MHz Core speeds (MHz): 1: 1554 2: 1806 3: 1527 4: 1529 
           5: 1535 6: 1529 
Graphics:  Card-1: AMD Pitcairn PRO [Radeon HD 7850 / R7 265 / R9 270 1024SP] driver: amdgpu v: kernel 
           Display: x11 server: X.Org 1.20.1 driver: amdgpu unloaded: modesetting 
           resolution: 1360x768~60Hz 
           OpenGL: 
           renderer: AMD Radeon HD 7800 Series (PITCAIRN DRM 3.26.0 4.18.3-1-MANJARO LLVM 6.0.1) 
           v: 4.5 Mesa 18.1.6

feels like game run slowly, with mouse lags, sound cracks and video artifacts