what is the alternative to scroll effects when i dont want a fixed width layout (i want fluid/responsive)?
Surely, there is a way of still getting a responsive design to have scroll effects (Wordpress does it).
Is the only other option to setup specific fixed width pages that are adaptive for mobile, desktop, and tablet?
Responsiv and Fluid width shouldn`t be mixed up. You talk maybe about responsive and adaptive design.
You can layout a responsive design from 1900 (or larger) to 320 as minimum width and use scroll motion effects.
You should go with fixed width breakpoints and use scroll motion.
One tiny restriction occurs for mobile (768 to 320) as not all devices support scroll motion on it.
That´s the reason, why it is still common to go with fluid width breakpoint at 768.
There´s one scrollmotionfluidwidth from qooqee but I am very unconscious if i would recommend it.
Give us a link for the WP scroll motion, so we can have a look at it.