Hello,
I recently purchased a similar module for a laptop and i’m having the same issues, very very slow speeds.
Quectel
QUECTEL Mobile Broadband Module
EG25GGCR07A02M1G
3GPP
GPRS, EDGE, UMTS, HSDPA, HSUPA, LTE, 5G
864081068696280
Please email me the latest firmware version along with instructions on how to qflash the firmware to the latest version.