Photolock has no negative effect on the speed of your website, but if you run a speed test on your site after Photolock is installed, you may see that the result is worse than it was before. Here is why:
Apps installed to your website are always loaded after your site finishes loading. It means that if your website loads within 2 seconds, Photolock will start loading after this time, 2 seconds.
This process is called "asynchronous" loading, in other words, it is the process for apps to load in the background without affecting the core components and load time of your website.
Even though your site is ready and loaded within the same speed, speed tests will calculate a total load time, including the time required for Photolock and other apps to load in the background. The result will show a longer total load time (by milliseconds). The more apps you install, the more the total load time will appear to increase. This does not mean your website works slower. Photolock is also an extremely lightweight application. Photolock's effect on total load time will only be a couple milliseconds.
However, in rare cases, if you install too many apps to your website that are large in size (unlike Photolock) the total load time may start to affect the user experience negatively and may even block some elements or conflict with other apps on your site. The core of your website may also already be working slower than it should.
If you feel that the case, we recommend hiring an Expert company to optimize your site for speed.
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