TelegramPerformanceClassUsage.java

public static boolean canBlurChat() {
    return getDevicePerformanceClass() == PERFORMANCE_CLASS_HIGH;
}

private static int measureMaxParticlesCount() {
    switch (SharedConfig.getDevicePerformanceClass()) {
        default:
        case SharedConfig.PERFORMANCE_CLASS_LOW:
        case SharedConfig.PERFORMANCE_CLASS_AVERAGE:
            return 100;
        case SharedConfig.PERFORMANCE_CLASS_HIGH:
            return 150;
    }
}

boolean animationEnabled = 
    MessagesController.getGlobalMainSettings().getBoolean("view_animations", true) && 
            SharedConfig.getDevicePerformanceClass() != SharedConfig.PERFORMANCE_CLASS_LOW;