Choppy/Jerky behavior on Firefox on OSX

[westende]

Issue description:

Behavior of this plugin in Firefox 59.0.2 is choppy on OSX 10.12.6.

Version used:

WordPress plugin including Jarallax 1.10.2.

Code to reproduce the issue (HTML blocks + JavaScript initialization)

The problem is easily visible at https://wp.nkdev.info/free-advanced-wordpress-backgrounds/.

When a performance profile is created you can also see a drastic performance drop as a result of browser paint events.

[TomFranssen]

I'm having the same issue on Safari 11.1.2 on macOS High Sierra 10.13.6.
See an example here: https://www.winkelstraat.nl/saint-laurent-bomber-jacket-zwart-1.html
(middle of the page)

[lsterling03]

I'm also seeing this behavior on Firefox 63.0.1 on MacOS Mojave (probably other versions, too - this is just what I have). It's choppy if I view your demo site on this browser: https://free.nkdev.info/jarallax/

[webinpixels]

any info about this FF bug? I'm having same issue FF 65.0.1 (64-bit) macOS High Sierra 10.13.6.

[obendev]

Can confirm. This issue appears in safari and chrome too. (OSX only)

[a4bits]

i have similar bug, when registering two elements with two diff jarallax functions, one works smoothly other choppy

[hunterorbit]

Has anyone found a solution to this choppyness ? It's making this plugin unusable at the moment.

[arrieburger]

Has anyone found a fix for this behaviour?