As you probably know, I spent a lot of time in Fiji, back when I owned my Fiji travel site. One of the many disadvantages of a "3rd world" country is the internet. They don't consider themselves 3rd world, but once you get out of the resorts and tourist areas, it definitely is. I have stayed in many places there where there is no power connected to the houses, cooking is over an open fire outside, and water is carted by hand from the river. Cultivating the farmland is done with oxen and horses or by hand, no tractors.
A slow connection speed here in Australia is about 20mb on the speed testing. I know as a general rule of thumb, if I want to download a 60mb file, it will take about a minute, or maybe a bit less. In Fiji, I would be lucky to get to something like .8 (that's point 8!) using 3g network. You might do a bit better on the landline services, but they were very patchy, sometimes they were OK, other times ridiculously slow (as in, click for a new webpage on the laptop, and go make a cup of tea while it loaded). The fastest I ever saw was 8mb (on somebody elses connection)... watching a video on youtube was frustrating, and as for actually uploading a video, well, forget it.
I was talking with Sandra, who bought my Fiji site, and now has a site about Cuba. She tells me the internet in Fiji was a million times better than what she got in Cuba! I think she might be somewhere in Mexico at the moment, as depending on where you are there, the speed is so much better!
So yeah, in some places, internet can be a real PITA. I checked a few websites that discussed the internet speed in P.V, seems it's pretty bad! Lots of people just can't get a decent speed or reliable connection. Though from what I read, it depends where you are, some places have fibre (so decent speeds) and other places don't (so bad connections).
Maybe what you need to do is find out if you are in a good or bad area, perhaps some expat facebook groups that could help? Another option to look at, is if the cell 3 or 4g is workable? If so, then a pocket wifi might be faster for you than a broadband connection, but probably more expensive per GB. That is what I used in Fiji, I found it was good enough for me to at least do my work, though nothing like the speed I was used to.
I think in places like the US and here in Australia, we take fast internet for granted, and when we go somewhere like P.V then it's just something we have to learn to adapt to. I know for me in Fiji, that meant watching music videos on youtube were replaced with music on my laptop, facebook wasn't left open all day, I didn't run 20 open tabs on my browsers like I do here, and I would only connect when I needed to. Files to be uploaded would be saved up and I would do them at maybe 5am when there wasn't too many users chewing up the internet.
Anyway, hope you manage to find some workable solution