Battlefield 6 Mouse problem after last updates...

Question

https://www.youtube.com/watch?v=C1rRAaR6uUg

My problem is mouse stuttering/hitching in Battlefield 6, doesnt happen in other games just bf6, I tried lower my polling rate, verifying files, steam offline mode, reinstall windows, updating graphics driver, other drivers etc.btw when I hold press on ALT, it doesnt happen so it's not my problem...

Dear developers please fix this immediately because I am not the only one experiencing this bug...

claire557 · Answer

Hello,The reason your ALT key trick works is the smoking gun: this is a confirmed bug with the EA Javelin Anti-Cheat system introduced in a late 2025 update. Essentially, the anti-cheat is aggressively scanning "normal" key presses ($WM\_KEYDOWN$), which causes a massive CPU spike on a single core, starving the mouse input thread. When you hold ALT, the system switches to "System Key" messages ($WM\_SYSKEYDOWN$), which bypasses the specific anti-cheat check causing the hitch.

Forum Discussion

Battlefield 6 Mouse problem after last updates...

1 Reply

Featured Places

Battlefield 6 Technical Issues

Community Highlights

[GUIDE] EA Account Help: No Access, Disabled Accounts, Hacks, Bans, and More

Recent Discussions

BF Labs Discord link not working, all accounts linked properly

PS5 completely crashing while playing BF6

Cannot sprint

Party put in separate games

Battlefield Labs through the EA App