Issue description:

then i connect colossal chest with about 1M random items /forge tps drops to about 10-12. then i disconnect "external storage" from diamond 16x16x16 colossal chest forge tps backs to normal - 20 tps
also then i access crafting terminal and i pick item it lags about 5s ( after 5s it works normal ). this is same issue with disk drives ( i used 64k and about 500k items )
also it works fine with storage drawers over drawer controller with 12M items. then i disconnect colossal chest or disk drives crafting terminal doesnt lag while picking items

modpack - skyfactory 3, mc 1.10.2

Version (make sure you are on the latest version before reporting):

• Minecraft: 1.10.2
• Forge: 12.18.3.2281
• Refined Storage: 1.2.25

Does this issue occur on a server? [yes/no]

single player and/or "open to lan"

lol

Do you have Common Capabilities installed?

yes, 1.9.4-1.3.1

Is your ext storage connected to the Collosal Chest Core and NOT a Collosal Chest Interface?

ext storage connected to interface

Connect it to the Chest Core.

now tps dropped to 4-5 (chest core)

have also experienced bad lag when connecting a RS system to a colossal chest tps went from 20(when disconnected) to around 9(connected) even when connected to the chest core tps is still around 9-10 the chest did have a fair few items in it though

https://refinedstorage.raoulvdberge.com/wiki/profiling

empty diamond colossal 16x16x16 connected to interface ( empty colossal chest ) drops to 7 tps
https://ufile.io/7e8i2

I too am experiencing this same issue on two of my SF3 servers with Refined Storage causing a large drop in TPS to around 9-12tps. If you would like me to do some profiling or any ideas on how to minimize the tps drop, please let me know!

If it helps we seem to have high profile visibility of external storage on the ATM2 official server as well:

atm2-snapshot-1496706787443.nps.zip

This is a problem with the Cyclops integration code. But I removed support for the Cyclops integration, so this issue is no longer relevant.