Excessive FPS Lag

[DBX_5]

I know this to be common in most games especially customs where theres a lot of units but is there any chance this can be improved upon? while still playable around 20+ rounds in with 3+ players I find I am dropping down to 30FPS on a Nvidia 860M GPU which seems some what excessive when I never see any drops below 50FPS when playing regular DotA.

[Karawasa]

Are there particular towers that you notice causing this? I know Quake and Vapor are major culprits that are getting fixed.

[DBX_5]

nvm figured it out, Laptop powercord was disconnected...