Fixing the network performance of a very specific laptop wifi chip pretty easily (especially for NetworkManager).

Currently the best approach on my Lenovo is the parameter set:
modprobe rtl8723be fwlps=0 ant_sel=2 ips=0 swlps=0 swenc=0 disable_watchdog=0

But it also worked with other configurations and does not seem stable. Some suggest turning swenc and swlps on for better perfomance.

Explanation of options here