Car switching problem

I'm having a problem where when i spawn i have around 20-25 fps, until i switch my vehicle and then it goes down to 5-10 fps. I was just wondering if anyone else was having similar problems, and if anyone knows how to fix it. I can't tell you my specs because i don't know them, i play on a laptop and don't know how to check them.

 

Try turning all your settings down to low, and disable postfx
BeamNG isn't a great game to run on a laptop.

 

For specs hold down the windows button and press r, then type in dxdiag.

 

I play without postfx and turning settings to low doesn't seem to help much. thank you for your suggestions though.

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Thank you, that's helpful.
My specs are
windows 7 home premium 64-bit
intel celeron cpu b840 @1.90ghz (2 CPUs)
4096MB ram
intel hd graphics 1696MB