For those who suffer from low FPS i discovered a solution. Launch BeamNG. Go to Task manager set beamng priority to high. This increased my fps with T-Series from 35 to somevhere around 40-50.
Never switch to realtime. Only go as far as high priority. At realtime the BeamNG thread can take precedent over kernel mode threads and drivers. You're asking for system instability at realtime. Setting tasks to increased priority is pretty much part of performance enhancement 101... Its all those game booster softwares do too.
That is probably the most dangerous thing you can ever do to a computer ever...NEVER run anything in real time.... Its just stupid and its absolutely down right dangerous!