CPU Bottlenecks in Rack-Stand Brain-Computer Interfaces: A Phase-Aware Characterisation. - Victor Kariofillis; Iris Uwizeyimana; Sara Ahmad; Tanvi Manku; Raghavendra Pradyumna Pothukuchi; Abhishek Bhattacharjee; Natalie Enright Jerger (ISPASS, 2026)