Need some recommendations!

First of all, don't judge my build. Sorry, I've been having a hard time finding a job.

I know it's a bit outdated but here it is:

CPU: Ryzen 5 4500 Motherboard: MSI A520M-A Pro RAM: Corsair Vengeance LPX 16GB 3200MHz CL16 GPU: MSI GTX 1650 4GB GDDR5

I don't play lot's of AAA games, mainly CS, that's what I've been playing my whole life tbh, since CS 1.6. Playing in 1024x720 I get an average of 130 FPS, but they do drop a lot and I have some stuttering too. Using Rivatuner I noticed that in game my GPU was being used only 35%.

I was thinking of getting a new GPU but I don't know which one would be the best combination for my CPU.

I was hoping for you guys can give me some recommendations.

Thank you!