Never make your inserters turn more than 90 degrees if you're modding them. Mine never turn 180 for pickup/dropoff. An inserter at one end of a cargo wagon pulls from towards the middle of the wagon and drops directly below where it picked up from. 90 degree turn for a standard length inserter. I ...

Thanks Honktown.
I'll try your addon. I think I'd like the option to not change some stack sizes.

I'm experimenting with avoiding loaders just now. Stack Inserter stack size is 39 at the moment. 6 of Bob's Ultimate Inserters are about 3.5 times as fast as one green loader. I like watching inserters ...

I've added two mods
1. Increase stack size for everything x100
2. Decrease all container slots x100

Iron plates = 10k stack size
Warehouses = 18 slots

I am not seeing a noticeable difference in UPS. ~51 with the mods running or not.

@Koub and Darkfrei
Thanks to both of you for helping me understand better how the game works.
Yes, I realize the warehouse issue was explained early in the thread. I was not aware of it before I started this conversation and I most likely didn't give enough credit to the comment when it was given ...

Each Warehouse is exactly as wide as a train wagon, 6.
Each Warehouse has 1800 slots, vs 288 in 6 Iron Chests.
180,000 Plates or 360,000 Circuits per warehouse. Four warehouses per train stop.

I had no idea the number of slots in a container affected performance. I'll try to work around it somehow ...

Thanks guys. I've made some headway.
Removing >1000 train signals.
Modified some track layout to provide better pathfinding. Forcing it's hand I suppose. Longer routes, but they make fewer decisions.
Optimized my circuit networks where possible. I use Warehouses, 4 per stop. I use circuits to ...

Thanks everyone. my TODO list
1. OC the RAM. Buy better if it helps.
a. if RAM speed helps, more channels will also help. More bandwidth is more bandwidth.
2. OC the CPU. I can get 5GHz on this one for a day but won't run it that hard all the time.
a. _WAS_ going to buy an i9 10980XE in February ...

@Honktown
I play with all enemies disabled. Pollution disabled. Smoke disabled. Didn't really think about the impact of LUA. My background is mostly hardware, so I was concentrating on maxxing out the utilization.

@Oktokolo
Ram speed eh? This Skylake system _is_ a few years old I suppose. CPU-Z ...

@Loewchen
Yes, I assumed the CPU would be the primary cause of UPS issues. However, the cpu is only 22% utilized across my entire system, Factorio is not even maxxing out one core. I do not believe the CPU is the problem here.

@Koub
Thanks for the confirmation. I've been considering reducing ...

Hi! Love your game. So many lost hours :-)

I don't have a specific bug to report. I can't quite figure out this issue.
I have plenty of CPU to spare, plenty of GPU to spare, lots of available Memory. Why is the UPS struggling? Not any one CPU core is pegged so I would assume even a single threaded ...