Use low resolution thumbnails.
Use small, low resolution thumbnails. They have a smaller file size and look just as good on high resolution displays because they’re smaller.
Smaller files are always much faster to load, because they take up less space on your device and require less time to download. When it comes to online streaming, this is especially important: the smaller your image file size is, the better it will perform.
Smaller file sizes also save you money in internet bandwidth costs and data usage. If you are paying for a gigabyte of data per month (or even a terabyte!), then every byte counts!
They are fine for previews.
They are fine for previews. This is because they look just as good on high resolution displays, they are small enough to be displayed quickly, and they are small enough to be displayed quickly on mobile devices using low bandwidth connections.
They look just as good on high resolution displays because they are smaller.
Many users have high resolution displays, which means they can look at smaller images just as well. In addition to that, smaller images are easier to load and are less likely to cause buffering. Smaller images take less space on the server, which means less time and money spent on hosting them!
Smaller thumbnails will increase your page’s score if you test it on GTMetrix or or Google PageSpeed Insights that evaluate page speed.
If you’ve been working on optimizing page speed and performance, it’s likely that you’ve already thought about image sizes and compression. If not, now is the time to start!
Conclusion
This is a really easy way to get your page speed score up.