I don’t know about you, but I now have the following set of optimizing mods working:
ValheimFPSPlus
ValheimFPSBoost
ValheimPerformanceOptimizations
ValheimNetworkOptimizer
fps_boost_high
There used to be KGoptimizer, but now it does such garbage in the console after the last update that I had to remove it and add fps_boost_high just in case
The game even with mods runs smoothly on my potatoes.
Although I have no idea how these mods work :D