iMac iOS High Sierra issues

[OhHeyIt’sMike]

I recently updated my iMac to high sierra, and now it's so laggy that ATS is damn near impossible to play unless i set the graphics to the lowest setting, which make the game look very cartoony. Has anyone else had this happen to them? I had the graphics on medium to high custom setting before and it ran pretty good. A few laggy issues now and then, but nothing like it is now. I was a few operating systemed behind and was running iOS X before I updated. Any suggestions on what I can do would be appreciated.

[Hypertext Eye]

I don't know much about Mac, so this may or may not help, but it may be that the newer OS is just too much for your computer to handle. You might notice everything running slower, not just ATS or other games.

If you were on Windows or Linux, I would tell you to update your GPU drivers, but I don't know how that stuff works on Mac.

[hackintoshchap]

Let me first clear up a few of Apple's operating system naming confusion.

The iMac and all Mac desktop and laptop computers use macOS or older versions of OSX. The mobile devices such as the iPhone and iPad use iOS.

If you have updated to High Sierra and are having graphics issues then its the OS that is at fault. Apple have a graphical engine named Metal 2. Metal 2 isn't working properly yet and a lot of folk are experiencing issues. The best suggestion that I can give you is to install Sierra or El Capitan as these will both give you the nessasary new security updates and solve you graphics lagging issue.

Let Apple solve the Metal 2 graphics issue and consider updating to High Sierra when the issue is suitably resolved.

https://itunes.apple.com/us/app/macos-sierra/id1127487414?mt=12
https://itunes.apple.com/app/os-x-el-capitan/id1147835434?mt=12

An early overview of Metal 2 technology:
https://arstechnica.com/gadgets/2017/09/macos-10-13-high-sierra-the-ars-technica-review/7/

Originally posted by Hypertext Eye:

If you were on Windows or Linux, I would tell you to update your GPU drivers, but I don't know how that stuff works on Mac.

For Apple hardware the OS loads the graphics drivers known as kernel extensions - the graphics hardware is detected during boot by the OS and the correct kexts are loaded automatically.

[OhHeyIt’sMike]

That's a lot of good information. Thanks hackintoshchap. I'll consider going back to one of those older macOS's and see how they work out. i appreciate the info

[hackintoshchap]

There has been a suplimental update today for 10.13.3 which has some updates for nvidia and AMD graphics hardware. You may with to give this update a go before moving to an earlier installation version of macOS.

The MacRumors forums are worth a visit.

Rumor has it that the 10.13.4 Beta has improved driver support but I wouldn't recommend using Beta versions on a primary computer due to it still being at Beta stage.

[OhHeyIt’sMike]

I've gone through a couple of High Sierra updates, and nothing has helped honestly. If anything, ATS runs a little worse now.

I tried downgrading from High Sierra back to Sierra, but it won't let me because it says the file is too old. I found a walkthrough on how to do it, but I don't have Time Machine set up, so i woould have to do that first. I also saw on that MacRumors site that the update 10.13.4 supports eGPU's on the Thurderbolt 3 plug, which mine doesn't have because it's too old. So it looks like my only option is to set up Time Machine and go that route at some point. Thanks again for all of you help. I appreciate it

[hackintoshchap]

Originally posted by Raiden353:

I've gone through a couple of High Sierra updates, and nothing has helped honestly. If anything, ATS runs a little worse now.

I tried downgrading from High Sierra back to Sierra, but it won't let me because it says the file is too old.

Change the date in Preferences to just after the existing installer date to re validate it. Second option is to download a freah Sierra installer from App Store - it will be shown in your purchases and can be downloaded again. If you do down load a fresh Sierra installer then ensue that you remove the old one to the trash. You can zip a copy to archive it for further use if required but leave it zipped in applications. Apple is funny about macOS installers being moved around.

I found a walkthrough on how to do it, but I don't have Time Machine set up, so i woould have to do that first. I also saw on that MacRumors site that the update 10.13.4 supports eGPU's on the Thurderbolt 3 plug, which mine doesn't have because it's too old. So it looks like my only option is to set up Time Machine and go that route at some point. Thanks again for all of you help. I appreciate it

Lot of new AMD suppot but you do require Thunderbolt 3 hardware or a hackintosh.
https://support.apple.com/en-us/HT208544

[Hallux]

Originally posted by Raiden353:

I've gone through a couple of High Sierra updates, and nothing has helped honestly. If anything, ATS runs a little worse now.

I tried downgrading from High Sierra back to Sierra, but it won't let me because it says the file is too old. I found a walkthrough on how to do it, but I don't have Time Machine set up, so i woould have to do that first. I also saw on that MacRumors site that the update 10.13.4 supports eGPU's on the Thurderbolt 3 plug, which mine doesn't have because it's too old. So it looks like my only option is to set up Time Machine and go that route at some point. Thanks again for all of you help. I appreciate it

Unless you're booting to Internet Recovery or a USB installer for the older OS and wiping the drive, you're going to get the error about the OS being too old. You can't download and run the installation for Sierra within High Sierra and downgrade the OS.

On top of that - if your system is running JUST an SSD, the High Sierra upgrade converted your drive to APFS, which is a no-go for Sierra. If this happened, there's a command you need to run in order to revert the drive to HFS+ so you can install Sierra or El Capitan on it.

[OhHeyIt’sMike]

That all sounds pretty complicated, lol. Do you think it would help at all to partition the hard drive a little bit, install Windows, and boot stuff up from and external hard drive? Or would I still have the same graphics issues?

[Wondering Dude]

Help I recently updated my iMac OS to High Sierra and I can't get pass the menu of the game if I press my charactor or try to create a new charactor to play the game it just crashes at the moment i click the button.