Fido

I am new to Fido and use an LG G6 on the Fido network.   My LG G6 on LTE mode (GSM/HSPA/LTE auto) ussually only has 2 bars but my Samsung S8 has 4-5 bars.  I swapped SIMS and sure enough the LG G6 still has 2 bars and the Samsung has 4-5 bars.     Wh...