In my opinion, you have unbalanced config - a very powerful GPU, plenty of RAM and rather mediocre CPU, SSD (NVME) could be also significantly faster than yours.
While not immediately, I do have plans to upgrade the CPU, storage and Ram
CPU to either and i7 9700k or i9 9900k, although I am leaning towards the i7, I don't really need an i9.
Storage to Samsung 970 PRO 1TB NVME M.2 Solid State Drive/SSD
Ram to G.Skill Trident RGB 64GB (4 x 16GB Kit) DDR4 3200MHz Quad Channel
and to install these a new Motherboard
MSI MEG Z390 GODLIKE Z390 LGA1151 E-ATX