When I am speed reading, I usually make one or two focal verticals and follow them instead of going horizontally.
While I found this a little faster than normal reading, it is still considerably slow in comparision to the vertical method, and does take some practice and getting used to before...
Among the Fantasy Isekai I know of, Grimgar had the most significant impact due to its messed up moon purely setting-wise imo. It was mentioned only for a short while, but left a lasting impression.
Don't fret, it is nothing compered to me deleting a week's worth of work, then breaking the device in which there was back up, repairing it, and accidentally deleting the files in the back up device just for me to break it again 🥲.