Last week my internet broke, it was a hub that was a few years old, so i was given the latest hub from my ISP which hasn't been out that long. On the wi fi it can have 5GHZ and 2GHZ at the same time, now when i did a speed test on my phone via the 5GHZ it came back with a speed of 155mbps, but i've been told 5GHZ is faster and the range is slightly less so that didn't surpise me. But on my computer i can still only get 90 or 95 mbps at a stretch, so i was wondering if buying a new network card would help me achieve the speeds i want? Because the computer i own is from 2010 and i haven't upgraded anything on it. Thanks.