XiNFiNiTYXD

So this post kinda got dropped in all the other posts, so i'm bringing it back because people stopped responding. I still need help with this.

Okay, so this is my world. A few quick things before you go in the world, if you use optifine change some settings. Render distance has to be below 16. and go to Video Settings < Performance < everything to "OFF" and chunk updates to "1" https://drive.google.com/file/d/0B1VTrihQL5cFVlh1ZUJVTXdabzQ/view?usp=sharing

Yes I moved all my mods to a separate folder outside of .minecraft and opened up minecraft with only Forge (and it was the latest version) and I still got lag. But with vanilla minecraft I got no lag whatsoever. I really want to play on that survival world with my mods but the lag is getting unbearable. Also... how do you upload a world? This is my first time on these forums.

So I recently built Tango Tek's iron titan in one of my singleplayer survival worlds, if you don't know what an iron titan is, it's basically a huge iron golem farm that you put in your spawn chunks and it gets you a crazy amount of iron. Anyways, I built it and the build requires a dispenser to throw an item through a nether portal every 8 seconds, it is a vital part of the build and there's no way around that. After I built it, I noticed that every 8 seconds when the item would go through that portal I would get lag, for example mobs would freeze, blocks would reappear when broken, chests would delay opening, that type of stuff. I know that forge is the problem with it because I had played in that same world without forge and there was no lag. I tried just using optifine without forge and it didn't lag. I tried using forge with optifine and it lagged. I tried using forge and having all my mods, and it lagged. I also played in that world without any mods in the mods folder but still using the forge profile and it lagged. If you need PC specs: My PC is a 64-bit Running the latest version of Windows 10 Ram - 16GB CPU - Intel i7-4720HQ GPU - NVIDIA GeForce GTX 960M And my JMV arguments (cuz i changed them) are -Xmx6G I use that (or -Xmx8G) on all of my profiles and I've had no problems until now. Does anyone know of a solution?