PS4 version of Warframe needs a performance mode. Or other players should be locked from force starting the mission until all platforms have finished loading out. If they don't want to wait.
Warframes Sanctuary Update Hits PS4, Xbox One
Warframe - Game Awards Trailer | PS4 - YouTube
Warframe - PS4 & PS5 Games | PlayStation (US)
Warframe - PS4 & PS5 Games | PlayStation (Croatia)
Warframe - Launch Trailer | PS4 - YouTube
Soapbox: Five Years On, Warframe Is Something Special | Push Square
Warframe®: Angels of the Zariman Emergence Pack
Warframe - PS4 & PS5 Games | PlayStation (Croatia)
Warframe - Lua's Prey Official Launch Trailer | PS5 & PS4 Games - YouTube
Warframe - PS4 & PS5 Games | PlayStation (Croatia)
The Darkness 2 dev's F2P shooter Warframe a PS4 launch title | Eurogamer.net
Warframe's PS4 port keeps the action fast and the price low - Polygon