I used cat 6 and cat 5e crossover cables directly between a laptop and a desktop. I set my computer ports (both of them) to max speed of 1gbps. I tried different cables. The speed does not go above 50-60 mbps. I can transfer files manually using SSD with speed of 700mbps but with these cables is limited to less than 60mbps.
Could you please help? I am skeptical of missing possible software or hardware points.