Optimize Slow-Loading PDF File and Viewing area Fix - Decrease size as well

We have 20 PDF's w FIGMA that were exported from a layered PSD/FIGMA. Strangely, despite the file size( needs to be compressed to small size with top reading quality), it lags on every device and in every viewer I have tried. The file eventually opens, so it isn’t corrupt, but the delay is unacceptable for everyday use and for sharing with clients. We need 1. Compression on all 20 PDFS 2. We need viewing area 100% to shown clear PDF on all Devices with no pixlation 3. Fix all the extra layering not needed for the PDF creation so the PDFs load fast ! What I need is a clean, fully-optimized replacement that opens instantly while still looking perfect on-screen and on paper. Please preserve print quality—this brochure must be press-ready—as well as on-screen clarity. Feel free to tackle hidden issues such as stray transparency, oversized images tucked inside clipping masks, embedded fonts, or bloated metadata. Deliverable • A single 20 PDF's that loads quickly on desktop, tablet, and phone and remains sharp when printed. • A brief note on the steps you took (preflight fixes, Acrobat optimization settings, layer flattening, etc.) so I can replicate the process in future. If you spot anything in the original FIGMA that contributes to the slowdown, let me know; We will Supply the FIGMA for each one. We need final perfect 20 PDFS. We will show all FIGMA and PDFS we have now . We need this job done in 1 day-2 days max ! see 1 PDF sample in Zip(FIGMA after we like your BID)