Prototype is slow but file is small

Having the same issue, can confirm small file size of 4%.
For me it happens on normal vertical scroll aswell as when opening an overlay

Also having the same issue with a small file (6%) memory usage.

My prototype is heavy on the tables which scroll both horizontally and vertically. It’s incredibly laggy and unusable for feasibility and usability tests. The only way I can get it to run smoothly is turning off the on hover interactions, which is not feasible, as we use hover states to expose functionality.

Hi ​@Rob_Winters ,

Sorry to hear you're experiencing performance issues. Our team is actively investigating, so could you please reach out to us by filling out the form at the following URL: https://help.figma.com/hc/en-us/requests/new?ticket_form_id=29433525829271? 

Thanks for your patience.
Toku

It mostly happened when “Smart Animate” Animation applied in Prototyping. Change Prototype Interaction Animation from “Smart Animate” to “Instant” OR “Dissolve”.  Run the Prototype and It always works for me. 

I’ve run into performance issues due to the complexity of vector images—having multiple detailed vectors on a single frame didn’t affect the file size, but it significantly slowed down prototype rendering. In presentation mode, I couldn’t scroll smoothly up and down the screen.

I only discovered the cause after gradually removing elements from the frame and realized that my icons (which had complex vector paths) were the source of the lag.

Hope this helps!