That’s about right for a 40 MHz channel I get 300 on mine. You can try to set it to 20/40/80 MHz and see how it works. 80 MHz will be faster but is more subject to interference and performance issues in noisy environments. So, for me, I’m fine taking a performance hit at the gain of better quality wifi. If I really need high bandwidth to move big files, I’ll use a computer connected to a switch.