Why do i have 88 ping and everyone else 40?

Why is that my PC has speed of 50 Mbps download and 20 Mbps upload, but my Ps4 shows speed of 50 mbps download and upload speed of 4.6 Mbps.

I'll rather play with my PC Kf2 where i can find games with 40 ping on me.

Why do i have 88 ping and everyone else 40?