Yes, it can still shoot in Continuous mode while tethered, but the sustained speed is limited by the camera buffer and the USB transfer rate. In practice, tethered shooting behaves much like shooting to an SD card at first: the camera captures frames into its internal buffer, so short bursts can still be taken at the camera’s normal burst speed. However, once the buffer fills, transfer speed becomes the bottleneck. For RAW files, you should not expect to maintain 3 fps indefinitely over USB; a more realistic sustained rate is around 1 fps. So: short bursts may reach the normal continuous rate, but long tethered bursts will slow down noticeably, especially in RAW.