Hardware :: Server - Buffered Disk Read Speed Just 3.98MB/s Very Slow ?

I am having a problem with my CentOS based server where the hard drive speeds are incredibly slow for both of the hard drives installed -

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Timing cached reads: 16512 MB in 2.00 seconds = 8272.92 MB/sec

Timing buffered disk reads: 12 MB in 3.01 seconds = 3.98 MB/sec

I have looked around but do not understand the complexities of rebuilding kernel etc so would need some assistance. I have checked IO_support and it is set to 0

Code:

Here are the results for hardware installed after a quick lspci -v

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If there are any noticeable incompatibilities here and how I could work to speed this up. I only have SSH access and could possibly get a KVM on it as it is currently locked up in a DataCenter.