https://www.gamespot.com/articles/dragon-ball-fighterz-updates-coming-to-fix-online-/1100-6456968/

Since its release in late January, Dragon Ball FighterZ has suffered from issues relating to online multiplayer. These are still present a month later, but Bandai Namco has reassured fans that it's both aware of the problems and working on updates to resolve them--the first of which should be out quite soon.