RCFProd :
It's definitely time to upgrade your CPU. You'd also have to upgrade your motherboard and your RAM atleast in this process, unless you intend on buying used parts that support your current RAM set.
QwerkyPengwen :
agreed. CPU is the definite upgrade here.
But I think it may depend on what motherboard you currently have as to how you may go about it.
I have the MSI 970 Gaming Motherboard, it has a AM3+ socket. Would upgrading to the FX-6300 allow me to have smoother frames?
When I play games such as Fortnite, I can hit higher than 60 but it looks choppy when I turn around.