Sadly, there is not much to report.
Starting from iron to golden chests (and, probably, higher) I am getting heavy performance hit using the chest.
It happens only client side (to my knowledge) , while chest UI is displayed.

List of mods:

Adorn-2.3.1+1.17.1-fabric.jar
adventurez-1.4.3.jar
appleskin-fabric-mc1.17.1-2.2.0.jar
architects-palette-fabric-1.3-1.17.1.jar
architectury-2.8.53.jar
artifacts-5.0.2+fabric.jar
AttributeFix-Fabric-1.17.1-11.0.2.jar
AwesomeDungeonFabric-1.17.1-1.1.3.jar
balm-fabric-1.9.0+0.jar
bambootweaks-3.0.2-fabric.jar
bclib-0.5.6.jar
BetterDungeons-Fabric-1.17-1.0.2.jar
better-end-0.12.5.jar
BetterMineshafts-Fabric-1.17-1.0.1.jar
better-nether-5.3.14.jar
BetterStrongholds-Fabric-1.17-1.1.2.jar
BlueMap-1.6.3-fabric-1.17.jar
Botania-1.17.1-422-FABRIC.jar
cloth-config-5.2.47-fabric.jar
Clumps-fabric-1.17.1-7.0.10.jar
compostable-rottenflesh-1.0.0.jar
concrete-plus-1.9.jar
convenient-mobgriefing-2.0.2.jar
Couplings-1.6.0+1.17.jar
Croptopia-1.17.1-FABRIC-1.7.0.jar
DualRiders-1.17-1.0.5.jar
dynview.fabric-1.17.1-1.5.jar
easywhitelist-mc1.17.1-0.2.0.jar
FABRIC_1.17_chipped-1.1.1.jar
fabric-api-0.44.0+1.17.jar
fabric-experiencebugfix-1.17.1-17.0.0.jar
fabric-language-kotlin-1.7.0+kotlin.1.6.0.jar
FallingTree-1.17.1-2.14.5.jar
fastfurnace-1.17-3.0.jar
ferritecore-3.0.3-fabric.jar
geckolib-fabric-1.17-3.0.30.jar
go-fish-1.3.1-1.17.1.jar
graves-1.1.4+1.17.1.jar
Harvest-fabric-1.16.1-1.0.1.jar
helpwanted_Fabric-1.1.2.jar
InventorySorter-1.8.0-1.17.jar
IronChests-1.4.5.jar
krypton-0.1.4.jar
lithium-fabric-mc1.17.1-0.7.5.jar
logprot-1.4-1.17.1.jar
modmenu-2.0.14.jar
MoEnchantments-1.18.1.jar
Mo-Glass-1.6.1-MC1.17.1.jar
morebannerfeatures-1.1.2.jar
morevillagers-FABRIC-1.17-2.1.1.jar
mostructures-1.3.0-pre1-1.17.1-fabric.jar
netherportalfix-fabric-8.0.0+0.jar
no_null_processors_fabric-1.0.0+1.17.1.jar
Patchouli-1.17.1-59-FABRIC.jar
phosphor-fabric-mc1.17.x-0.8.0.jar
plasmovoice-fabric-1.17.1-1.2.9.jar
quarry-reborn-1.17-0.5.2.jar
repurposed_structures_fabric-2.5.7+1.17.1.jar
reroll-1.3.0-1.17.1.jar
RoughlyEnoughItems-6.3.355.jar
someforgepatchesported-1.0.1.jar
spark-fabric.jar
stoneholm-1.3.jar
TechReborn-5.0.11-beta.jar
textile_backup-2.2.0-1.17.jar
'The_Graveyard_2.1_(FABRIC)_for_1.17-1.17.1.jar'
trinkets-3.0.4.jar
voidz-1.0.5.jar
wraith-waystones-2.2.2.jar
Xaeros_Minimap_FP21.22.3_Fabric_1.17.1.jar
YungsApi-1.17-Fabric-19.jar

Hello, this is a known issue. The problem lies on the LibGui implementation.
There is not much I can do rather than finding an alternative to LibGui (unless LibGui's maintainer fixes the performance issue).
Right now I do not have spare time for such a replacement, so anyone is more than welcome to submit a Pull Request with a fix.

Just tested performance issues when opening chests in the upcoming 1.20 release. There is still a drop of FPS when a chest GUI is displayed, but it is not as noticeable as it used to be. I am closing this for the time being as there is no need to replace the GUI for such small performance loss.