Call me mister suspicious if you like but I have had this exact issue daily with Chrome since they started complaining about adblocking. And wouldn’t you know it, the moment any form of adblock is disabled it miraculously does not happen. I can also fix it by clearing my cache every day and restarting the browser. I would start with those steps.
You can’t slow down the head in specific spots but you can slow it down in general as well as setting a minimal layer time so that it pauses between layer and lets them cool.