Can i spend more power to get stronger 3g connection?

[Mr.Đ]

Im using lg g3 ls990, other stock rom is ok but now im using cyanogenmod 13, and 3g is very weak. So can i edit someting in my system (like build.prop) to get it? Please help me

 

[Mr.Đ]

Some people tell me add this text into build.prop
ro.ril.hsxpa=2
ro.ril.gprsclass=10
ro.ril.hep=1
ro.ril.enable.dtm=1
ro.ril.hsdpa.category=10
ro.ril.enable.a53=1
ro.ril.enable.3g.prefix=1
ro.ril.htcmaskw1.bitmask=4294967295
ro.ril.htcmaskw1=14449
ro.ril.hsupa.category=5
Im not sure whats that but i think it not work