Extremely slow speeds Nighthawk m1

[Rotten_net]

Bought a m1 because of the internet's reviews.
2 months later I have 0.15 mbps? 20.0 is about what I had but suddenly it just became extremely slow and I have tried the obvious solutions (restart and of course installed it all over again) it's still slow. It's almost like its locked at 0.15 mbps both up and download.
Please help me before I throw it the f away

[JohnPeng]

Please let us know the SKU name (MR1100-1xxxxx) and which carrier you are using.This is most likely due to carrier throttling the data. You may try a different carrier's SIM.

Please also check and inform us the signal bars displayed on the device LCD

Thanks