Most speedhackers were able to speedhack off of one exploit that was found, then patched once LO came in. As far as I know, it's impossible to speedhack now.
Every player who says shit like this is somehow silver in 2018, and cant minttk with ntec/oca/pmg, so they resort to using meme guns, and then get upset when someone who uses a much better weapon with way better aim just absolutely destroys them. People are better than you, people are allowed to be better than you. You can't expect to play a competitive team-based shooter and not get stomped by a select dozen players, while destroying everyone else.
Short answer: Get good. Learn from the sweaty players, don't be toxic, admit that they outplayed you, admit you're worse than others, and move on. If you keep blaming it on "cheating" and "hacking," you'll be blinded by your own ignorance, and never be good at apb.