That is not a bottleneck issue, i used to have an FX-8350 and i had more fps with the 970 than 50, i highly suggest you to post your problem on these forums (that are meant for this stuff), you will probably get a solution there
Toms hardware: http://www.tomshardware.co.uk/forum/
Linus tech tips: https://linustechtips.com/main/