[SOLVED] help upgrade old pc please...

[jaroytv]

Hello boys i now use my old pc and buy new monitor DELL S3422DWG and i have rly big problems with fps...its any possible upgrade at maximum price 300 usd ?
CPU Intel Core i5 9600K @ 3.70GHz
Ram HyperX Predator RGB 16GB (2x8GB) DDR4 3200 CL16
MB Z390 UD (rev. 1.0)
DELL S3422DWG (3440x1440@144Hz) Acer Predator XB271HU (2560x1440@165Hz)
GPU 3071MB NVIDIA GeForce GTX 1080 Ti (EVGA)
HDD 476GB INTEL SSDPEKKW512G7
CASE Regnum-rg4t
Cpu Cooler ARCTIC Freezer 34
PSU EVGA 650 GQ

 

[USAFRet]

An i5 9600K based system is not "old".
In what was is it not doing what you need?

Initial suggestion would be an SSD of some type.