My minecraft is running at 0-5 FPS?

My minecraft is running at 0-5 FPS?

Added (1). My PC Specs:
Processor: Intel(R) Pentium(R) CPU B950 @ 2.10 GHZ 2.10 GHZ
Installed Memorey (RAM) : 4.00 GB (3.71 GB Usable)
System Type: 64 Bit Operating System, x64 based processor

Added (2). My PC Specs:
Processor: Intel(R) Pentium(R) CPU B950 @ 2.10 GHZ 2.10 GHZ
Installed Memorey (RAM) : 4.00 GB (3.71 GB Usable)
System Type: 64 Bit Operating System, x64 based processor

BTW my refresh rate is 60

Buy better computer