Is my computer good enough?

[bobbo1983]

can someone help me please?
firstly, i have tried downloading dolphin 3.0 but all versions come up with with an error message saying the program cant start VCOMP100.DLL is missing from my computer. so i am running dolphin 2.0, is this good enough?
secondly, are my computer specs good enough?
thirdly, i have been playing new super mario bros and mario kart wii and they seem to be running slow. i have tweaked the settings and got the graphics looking good but the gameplay is slow. is there somewhere where i can find the best configurations?