Heya,
Yes set your island start lobby spawnpads to priority 2 (lower) and your gameplay spawnpads to priority 1 (higher)
You can keep the island start spawners enabled, unless they’ve changed recently spawnpads don’t retain the changes to disable/enable across rounds
What you can do is have some teleporters that are enabled during game phase, they use the lobby spawnpads, on player spawned event to immediately teleport a joining player to the game area.
You use a few and set them to affect different players by team.