Wifi is slow in Parrot OS 4.0.1

Hi guys since 3.11 release i often use sudo tee /etc/modprobe.d/rtl8723be.conf <<< "options rtl8723be ant_sel=2" because everytime I fresh install, wifi is very slow and if I run this command in terminal, so my wifi will have wider coverage and faster connection like in Windows. But, in my fresh install in 4.0.1, its not working. please help. Thank you!

Parrot OS 4.0.1
Fresh installed