Really, really low FPS!

So ive been playing rust for about a month, i have to say, i love it. the only problem i have is i only get around 5 fps, 10 if im lucky. I’ve done everything in game that i could, the only respone ive been getting is “get a job and get a new computer.” I’m only 14, there aren’t many jobs that hire at such low age. Any suggestions? Thanks you for your time.

http://www.piriform.com/speccy

summery in specs please

depending on your computer getting a new desktop may be the only way.

Heres my specs,

Manufacture: Acer
Model: Aspire x1200
Processor: athlon Dual core processor 4850e 2.50 GHz
RAM: 4 GB
System type: 64-bit operating system

thanks for the help, if theres anything else you need to know please let me know!