browser slow

My pc specs here (Mainboard: B550M DS3H Gigabyte). My internet speed is doing great, low latency, 0 packet loss, 236mbps download and upload as you can see here. I'm using (as always) my ethernet cable (rj45, 1000mbps). The issue is: Suddenly my browsers (especifically the cromium ones, like...

I have an msi Z77MA-G45 motherboard, an Intel core i5 3570k, an Asus Ge force GTX 660 DirectCU2 OC ,16 GB of patriot viper 1600 MHZ ram DDR3, and (this is what i thinks the problem) ,and a 880W no name brand its like a gamer series or cool power (not cooler master though) PSU. I've had this...