Dive Tackle inconsistency

Tell me how in the fake do you get a big hit after being suspended in the air for 2 seconds. Make it make sense or fix it fast. If the player is to make the tackle at least make it a shoe string tackle not a **bleep** big hit. Ridiculous. And I’m cursing because it cost me a first down after a shook 3 people to get it on 4th and then  here comes the five tackle on an angle.