Request Description

Perhaps adding a feature that slows down the process of displaying new chunks would help reduce lags and latency in some cases. In case of a large number of mods, this feature may be useful to eliminate fps drops

You can already control how many CPU threads are used for chunk meshing calculations in Video Settings. The default is a fraction of your total CPU cores, clamped between a minimum of 1 and maximum of 10, so setting it to 1 guarantees only one thread will be used.

Otherwise, offering a finer-grained setting is not planned. In my testing, even in modpacks, the amount of CPU time used to mesh chunks is relatively minimal, and code from other mods/lag from the integrated server in singleplayer is a far bigger contributor to the problem.