The better network is likely to be 4G or even 5G if they are available in your location however the dongle you have is pretty old and I don't think it will accept 4 or 5G signals as HSDPA is 3 G however I stand to be corrected. If you have 4 or 5G available in your location maybe purchase a new dongle. 4G ones are pretty cheap on eBay.
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