Another thing you might try is to reduce the size of the JPEGs you are trying to load. There are several ways to do this, particularly with photos taken with your smart phone that tend to be 1-2 Mb in size. They can be reduced to 2-400 Kb. They will then load much easier, particularly if you are bandwidth challenged.
Dave and Beth
2015 Cornerstone 45J
Ford F-150 and 2016 Polaris Razor