This is what I got with 2.4ghz WiFi I was limited to about 55mbps, ping remains the same. Probably buy a router that can support 5ghz, this will probably solve your problem. I'd suggest calling your ISP to cap your internet to 50mbps to save money or buy a new router.
Thank you so much for helping. It surely is a router limitation as confirmed. I'll look into it. :highfive: