Players of Marvel: Tōkon Fighting Souls are experiencing performance issues on PC, leading to a Mixed rating on Steam with only 43% positive feedback. The game suffers from persistent micro-stutters during gameplay, launch failures, and significant challenges for Linux users, who are unable to access the game. A Reddit user highlighted that the game has regular micro-stutters regardless of hardware or settings, with frame-time graphs showing frequent spikes correlating to visible stutters. These issues disrupt online matches due to dropped frames. Even high-end hardware does not alleviate the stuttering, and external frame-rate limiters do not resolve the visible stutters. Steam reviews reflect concerns about performance, with some users reporting issues before launching the game. Linux users are particularly frustrated as the game blocks any attempts to launch on Linux systems, unlike another title from the same developer. The game is also not compatible with the Steam Deck due to similar Linux-related issues. Arc System Works has released a day-one patch aimed at improving performance, including reducing CPU load and addressing performance drops associated with overlays, but players are still awaiting feedback on its effectiveness.