Woelfchen

Played yesterday, november 15th, together with a friend and we had no problems. Today, a day later, when he is on my planet, after a short time, it's unplayable laggy for him. Just tried the other way round and now I have the lags, cant control my movements, skip in his view many steps,... Please improve performance in multiplayer mode. Question : Is multiplayer done via server or only on ps4?