How to reduce bottleneck from old GPU and High end CPU?

Solution
First of all, you dont need to gimp or otherwise downgrade your processor. That is a plain bad and incorrect way of thinking.
Second, there is no "bottleneck" here. Your graphics card is easily far weaker than your processor, however, it is not preventing the processor from operating at its full potential. Therefore it is a weak point, not a bottleneck.

What is wrong with your system that makes you want to change anything?
First of all, you dont need to gimp or otherwise downgrade your processor. That is a plain bad and incorrect way of thinking.
Second, there is no "bottleneck" here. Your graphics card is easily far weaker than your processor, however, it is not preventing the processor from operating at its full potential. Therefore it is a weak point, not a bottleneck.

What is wrong with your system that makes you want to change anything?
 
Solution