Hardware upgrade question

Hi everyone,

I work daily on Premiere Pro and After Effects. I feel like Premiere is starting to lag a bit and I wondered if someone could point me in the right direction to what is the best to upgrade in my setup.

I'm on PC running:

Intel(R) Core(TM) i7-6800K CPU @ 3.40GHz

64GB RAM

GeForce GTX 980 Ti

I was going to upgrade my graphics card, potentially to:

GEFORCE RTX 2070 SUPER GAMING OC 3X 8192MB GDDR6 PCI-EXPRESS GRAPHICS CARD

But I only wanted to do it if it would really help.. anyone with technical know-how able to help?

Thanks!

Ben