You can use DepotDownloader to downpatch the game to an older update, as a recent update made the XP gain in Swamp Health significantly slower. I won't be going into detail as to how to use DepotDownloader here as there are plenty of tutorials on Youtube on how to use it, so I'll just give important information specific to this game.

• App ID : 914170
• Depot ID : 914171
• Manifest ID : 686424898210264563 (version from 1st June 2024)