Arc System Works has shipped a day-one patch for Marvel Tōkon: Fighting Souls that directly targets the Steam version’s most-reported problems – heavy CPU usage, overlay-related slowdowns, and a delay in sending input data during online matches – following a rocky launch that drew complaints of freezes, black screens, and stuttering, as reported by Push Square.
Here’s the context: The complaints weren’t cosmetic. For a competitive fighter that lives and dies on frame pacing and input reliability, CPU spikes and shader compilation stutter can wreck ranked and cross-play matches even when the game is technically running, an issue our earlier coverage of the open beta’s performance problems flagged well before launch. Arc System Works had already promised fixes for frame-rate drops, lag, rollback netcode, and cross-play stability after that beta, and this patch is the first real test of whether those promises held up.
The update reduces CPU load by trimming unnecessary character animation updates, eases strain from applications using overlays or capture tools like OBS Studio and Discord, and fixes a bug that allowed unintended anti-aliasing plug-ins such as DLSS, FSR, and XeSS to activate on their own. It also changes shader warm-up behavior at startup and adds graphics options – including reduced update frequency for background stage characters – that players can use to claw back CPU headroom on weaker systems.
Most consequential for competitive players: the Steam version patch specifically fixes a delay in sending input data during online matches, a problem that would have directly undermined ranked play regardless of how smooth the local frame rate looked. The PS5 version gets a separate set of input-lag mitigations, and Arc System Works also adjusted input prioritization so certain difficult command inputs, like canceling ground dashes into skills, register more consistently across both platforms.
Honestly, this is Arc System Works treating performance and netcode as the same problem, which they are in a fighting game. A patch that only smoothed out frame rates while leaving online input delay untouched would have been half a fix; addressing both in the same update suggests the studio understood exactly why the beta backlash was so sharp. Early reception on Reddit has been notably positive, with players describing stutters and low GPU utilization clearing up after the update, according to Kotaku.
But a smoother frame rate doesn’t fix the part of this launch that has nothing to do with optimization. Marvel Tōkon was reported unavailable for purchase in 132 countries and territories on Steam because PlayStation Network isn’t supported in many of those regions, a restriction our breakdown of the Steam regional block covers in more detail. No amount of CPU optimization changes the math for a player in an affected country who can’t buy or activate the game in the first place.
- Reduced CPU usage – fixes to startup CPU spikes and periodic audio-processing overhead during matches
- Overlay and capture fixes – addresses severe performance loss when running OBS Studio or Discord overlays and capture
- Anti-aliasing bug – stops unintended AA plug-ins (DLSS, FSR, XeSS) from auto-enabling
- Online input delay – Steam-specific fix for delayed input data transmission in online matches
- PS5 input lag – separate mitigation measures applied to the console version
What remains unclear is whether the patch resolves the anti-cheat behavior reportedly preventing the game from launching on Steam Deck and Linux setups at all, a problem the primary patch notes don’t directly address. It’s also not yet clear whether the fixes hold up across the full range of PC configurations once launch-week traffic stresses servers further, or whether Sony has any plans to revisit PSN’s regional footprint given the scale of the Steam access block.
What to watch: further patches addressing the SteamOS/Linux anti-cheat issue and any movement on PSN’s regional availability, since either would meaningfully change who can actually play this game rather than just how well it runs for those who already can.
Has the day-one patch fixed your experience with Marvel Tōkon on Steam, or are you still running into stutters and dropped inputs? And if you’re in one of the 132 blocked regions, is a performance fix even relevant to you right now?
