Closed Pa help po

Ung 4g tower ng globe 30mpbs usualy nakukuha kong speed then suddenly bumagal ng 1-5mbps.
Ung 4g tower kase naging ganito ang signal
1 PLMN: 51502
2 Service status: Valid service
3 Cell ID 0138637-004
4 PhysCellId 4
5 RSSI (dBm): -61
6 RSRP (dBm): -89
7 RSRQ (dB): -12
8 SINR (dB): 0
9 Roaming: No


Ang dati nya ay
1 PLMN: 51502
2 Service status: Valid service
3 Cell ID 0138637-004
4 PhysCellId 4
5 RSSI (dBm): -51
6 RSRP (dBm): -79
7 RSRQ (dB): -10
8 SINR (dB): 8
9 Roaming: No

Ano po kaya naging problema nito , Upgrade ng tower? mag 5 day ng ganito. TIA po