Oscilloscope card (PCI-5105) capture waveform data speed problems

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Hello, 
Attached file, and the bottom two Pictured vi

NI PCI-5105 oscilloscope card has 8 input channels, 60M / s sampling rate

then input waveform frequency of this oscilloscope card for 4M / s
I want to capture 10000  waveform data in 1 second then convert array for processing 
But I took about 4.1 seconds to complete (as shown in the red)
how do I reach my goal?
Thank you for your help

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