My client recently told me that his Google Ads person was unhappy with the mobile site performance. I recommended that he migrate his site to a host with LiteSpeed servers so I could work with it more effectively, which he did. I’ve been working on the cache settings and every time I get the mobile performance grade up to 90+ with little or no blocking time in PageSpeed Insights, after a few hours—and with no further changes—it drops back down to the 30s and 40s. Desktop speed is great, consistently scoring in the mid to high 90s. It seems like the webp versions of images are not being served consistently to mobile, and when they’re not, other faults appear, such as the HubSpot form loading slowly (I have replaced the old form code with their current code…and this form does not appear in an incognito window/LiteSpeed Guest Mode). It’s unclear to me if this is related to BPS, but maybe that’s what’s blocking the delivery of webp images…I don’t see anything in the security log that indicates this, though. Can you help me determine whether or not BPS is preventing the optimized images from being delivered to mobile?
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