The open beta for Marvel Tōkon: Fighting Souls has exposed significant technical problems specific to its PC version. Players report severe performance inconsistencies ranging from stuttering to extreme slowdowns, excessive CPU load concentrated on single threads from anti-cheat systems, multiple Sony services running simultaneously in the background, and problematic input responsiveness that interferes with fighting game timing and motion execution. Some players have also voiced frustration with mandatory PlayStation Network authentication required before each session.

Arc System Works publicly acknowledged the issues and confirmed their team is actively investigating solutions ahead of the August 6th launch. The studio has shared unofficial troubleshooting suggestions sourced from the community, including graphics optimisation settings, though players report these provide only partial relief. The compressed timeline between beta testing and official release raises questions about whether substantive fixes can be delivered before launch.