after effects cc2014 speed up check my specs need help

Jan 16, 2019
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2 samsung ssd 860 evo 2tb each.
32gb ram ddr4
i7 6700k
gtx 980-ti updated drivers

after effects settings.
set cache to 1 ssd. setted maximum disk cache to 116gb
gpu selected from the settings list shows 6gb uncompatable gpu but selected anyways.

need help speeding up timeline preview with full resolution if possible? i se videos and they show they edit 4k video am only working on 1080 or less but when i add effects this is when it plays up lagging when i move the mouse in time-line.

just as you will add a new comp and no effects when you scrub the timeline it is smooth i am wanting to archive this result with the specs i have is it possible.

what am i missing do i have the correct setup?.
 

rgd1101

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Question from jimm11 : "adobe after effects cc2014 speed up check my specs need help"