200 MB is a lot of data. It's taking you over 20 seconds to run those tests.
If your tests are completing in a couple of seconds, then an increase in size may help.
When running the tests using default options (e.g. go to https://testmy.net/download and select "Test My Download Speed") it's possible to exceed 200 MB of data in a test. As it runs through to determine the proper size, it's ramping your connection up for the final test... of 200 MB if needed.
When I ran mine just now it starts at 96 kB, then 3.1 MB, then 75.5 MB and finally 200 MB. So in reality that was a 279 MB test. A faster connection might end up running over 300 MB. But it's logged as 200 MB because that was the final test size.
It does help to get the connection going before the test. But with your current speed you will probably end up with a smaller test size because the program knows how much it needs to see to make a determination.
The amount of time the test runs is more important than the amount of data. TestMy.net will serve you more data if it feels like it needs more time. But it's not going to use time or bandwidth that isn't necessary, unless you tell it to.
Your distance from Venezuela to Florida (3000 km) may play a role, depending on the connections between your ISP and the US.
Here's my result nearby
TestMy.net Test ID : CjBU5ycOa
And here's my connection testing against Singapore (over 14,000 km)
TestMy.net Test ID : u3QVZnr-z
A similar distance for me is actually testing on the same server in Florida. (3000 km) -- you and I have very similar ping to that server ~50ms.
TestMy.net Test ID : 0ypc_y5nf
My speed to Florida was actually a little faster it just wasn't as clean so it ended up slower. That was testing with only 85 MB but again remember there were tests preceding that one.
When I select 200 MB I get a lower result because it takes time to ramp up the connection. Time that's calculated in the final result. Where before that was done before the final test loads.
TestMy.net Test ID : OnAU3G9PT
I still hit 333 Mbps but all things considered it was slower.
And if I enable multithread to Florida and run the same SmarTest (we haven't called it that in a long time but that's its name) I get a much higher result. And the way it ran through the test sizes my connection used over 300 MB of data to produce the 200 MB final test.
TestMy.net Test ID : Qj0D50paR
In other words, I think the 200 MB max is sufficient for your connection and most out there. The program can scale the test sizes to any size it's just being restricted. In the future I plan to open that up.
Thank you, I'm happy you found us here. Unfortunately most don't. Please spread the word.
Grateful for the time and dedication to the explanation of my isp, in this case my isp has a problem or it is limiting my broadband if you look before 04/26/2022 my average speed was 55mbps now it is in a drop of 3mbps which I have made claims and nothing, although it is good that they increase the bandwidth it is because in our country the isps limit us and we need a reliable page like yours to measure our providers since they are fed directly of bgp in the USA.