what can I do to bump up my score?
First, upgrade your 32 mb's of memory.
Next, pick a better benchmark tool, If on Win10, use http://win-experience-index.chris-pc.com/ for a general idea on performance. Here's mine, AMD Phenom II 965@ 3.4 GHZ, 8 Gigs RAM. GTX 650, Sandisc SSD.
ChrisPC Win Experience Index - WEI Scores
Running Windows 10 Build(10586)
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Component Subscore
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Processor 7.4
Memory (RAM) 7.4
Graphics 8.1
Gaming graphics 9.9
Primary hard disk 8.2
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Base score 7.4
http://win-experience-index.chris-pc.com
As you can see. it toped out the GFX card, yet the site you linked to gave me a 21% score for it.
Go to Passmark.com for more reliable ratings of components. The site you linked top seems to be incredibly underrating components.