pc underpreforming

So, i bought an RTX 3060 in August, and i started to notice that the performance of the pc is not as good as i toght. For example i have about 45-76 FPS At Fortnite, i can't play GTA V, BF V, Warzone and games like these. Before the 3060 i had a 750ti Here are my specs: CPU: i5 10400f (stock...

As I said in title , my pc got slower and slower recently and i blamed it on the internet speed , but I decided to try benchmarking it and the results told me that the pc is performing below expectations, and the cpu is in the 6th percentile. can anyone help me out and tell me how to try and fix...

I built my PC about 2 years ago I have a intel I7 7700k Asus ROG Strix Z270 Motherboard Asus ROG GTX 1070 OC 16 gb of ram The monitor I currently game on is an Acer XF270HU at 2560x1440 A few months I noticed a dip in my frames I usually got nothing below 120 frames in games like Fortnite...