Why is Brawl Stars broken on Mobile (iOS/Android)? (Input lag or rubber-banding during matches)
Your brawler's movement and attacks feel delayed, or position visibly snaps back, especially in showdown or knockout modes. Brawl Stars syncs position data frequently for fast-paced combat; unstable upload bandwidth (not just download) causes visible desync even on otherwise "good" Wi-Fi. Fix: Move closer to your Wi-Fi router or switch to 5GHz if your router supports it — many homes have weaker 5GHz coverage but it's less congested than 2.4GHz.