Whats wrong with this setup, in terms for gaming?

SuperNinja741

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Dec 30, 2015
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I have a 2 TB hard drive, 8 gigabytes of DDR3 ram, an Intel i7 5500U and a nVidia GTX 930m. But when I try to run a game, such as FIFA 15, it runs with frequent lag spikes and audio stuttering. The CPU usage also spikes and I have yet to test the GPU. If i was to upgrade one part what should it be?
 

SuperNinja741

Reputable
Dec 30, 2015
6
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4,510
yeah i tried that but it didn't make any difference. Is the GPU the problem?