“iListenerSys[S]->Unable To Init Audio!"
you need to set quality of your primary playback device from studio quality to dvd quality.(right click on sound->playback devices->look here for default device->double click on it->advanced->default format->make sure it’s 16bit 44100hz(CD) or 16bit(48000) DVD

"Empty errors or something like that(sse4 is not suppored by your CPU)"
download fix https://www.dropbox.com/s/euzlafx70mr3lk9/nt_ssefree.rar?dl=0 (must be unpacked in the debug folder)
to open the game folder, right click in steam on drive megapolis->properties->local files->browse local files, open mgpls folder

How to enable better vehicle physics for AI traffic(will increase CPU usage):

• to open the game folder, right click in steam on drive megapolis->properties->local files->browse local files, open mgpls folder
  
• open editor.lua in notepad it’s located in the mgpls directory, scroll to the bottom of the file and add this UseCarPhysicsForAI=true and save it

Performance improvements:

• Try to disable or set to low quality grass – that should improve GPU usage
  
• Try to disable UseCarPhysicsForAI – that will reduce CPU usage
  
• Try to lower amount of cars and people on the streets
  
• Try to lower resolution