Fix javascript glitch in images gallery with php CMS

Avg Bid (USD)
Project Budget (USD)
$30 - $250

Project Description:
I have a gallery (images controlled via a custom php CMS).
The page is just rows of tumbnails loading one image at time.

It has a glitch I need it fixed:

I should see the images load smoothly one at a time. Just like LINK 1(will send links via message) this link has the sample images hard coded.

After the CMS integration the following glitch appears:

Glitch details:
In each category it will show me the first row only. When I reload the site a second time it will start showing me all the rows. After I go back the third time it briefly flashes in all the rows for a split second and then starts loading the top row and continue with the remaining rows. The loading of the rows also seems to be at a different speed and still looks a bit uneven. Some parts of the row blends in fast and then it slows down again.
To see the links to the pages send me a private message.
Thank you for your interest.

Best regards,

Skills required:
CSS, HTML, Javascript, PHP
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EvaMaria United States
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