RM500Q download speed too slow

My device is Ubuntu 18.04 and is communicating with the 5G module through the PCIe interface.

However, the download speed is around 150Mbps.

at+cops?
+COPS: 0,0,“LG U+ LGU+”,13

OK
at+qeng=“servingcell”
+QENG: “servingcell”,“NOCONN”
+QENG: “LTE”,“FDD”,450,06,31B180F,133,100,1,5,5,20CE,-81,-9,-52,17,12,100,-
+QENG: “NR5G-NSA”,450,06,359,-86,145,-11,630624,78,12,1

OK
at+qendc?
+QENDC: 1,1,0,1

OK
at+qnwinfo
+QNWINFO: “FDD LTE”,“45006”,“LTE BAND 1”,100
+QNWINFO: “TDD NR5G”,“45006”,“NR5G BAND 78”,630624

OK
at+creg?
+CREG: 0,3

OK
at+csq
+csq: 31,99

OK
AT+C5GREG?
+C5GREG: 0,0

OK
AT+QNWPREFCFG=“ue_capability_band”
+QNWPREFCFG: “gw_band”,0
+QNWPREFCFG: “lte_band”,1:3:5:7:8
+QNWPREFCFG: “nsa_nr5g_band”,78
+QNWPREFCFG: “nr5g_band”,0

OK
at+qcds
+QCDS: “SRV”,“ENDC”,45006,100,31B180F,15,2,133,8398,-55,-82,-8,5,128,C50610CA,0,0,13,13,630624,359,-85,-11,16,12

OK

Is there any solution?

Dear @iicfpeta.work
Sorry for the late. Please share your current firmware.

I am testing two modules.

RM520N-GL : RM520NGLAAR01A07M4G
RM500Q-GL : RM500QGLABR11A01M4G_KR

thank you