can you explain to me, why would you play on maxed out settings? it gives you only disadvantages against others. it doesnt make any sense
I'm not sure who that's aimed at, but I would say just experiment with settings other than very low to see what happens. The reason being your GPU is probably doing very little work at low res/low settings, which is why your CPU is being so stressed. Increasing the resolution (to the native panel res preferably) and maybe the quality settings will put more load on the GPU and give your CPU a break.
At the very least 16:9 will give you more peripheral vision which is a definite tactical advantage.
all of the resolutions(16:9, 4:3 strech) has their own cons and pros. well except playing with blackbars. but i play cs a for 11 years or so thats what seems most comfortable for me. there is a big reason, why players, who play in a little bit higher level than matchmakings, use lower settings. i dont want to start talking about input lags, response time, motion blur etc. feel free to google it
it's hard to tell people, who have never played older versions of cs, why do people use these res, because most of them play games like cod, gta etc, where higher settings is better and makes you cooler. cheers.