iMac 2019 - OSX Big Sur - Stuttering

Mac Support
1

My hardware:
iMac 2019
5700 XT
16 GB RAM
NVME SSD

Issue:
The game stutters all the time, extremely for the first minute or two of gameplay, and afterwards when various abilities / spells are used it stutters before rendering them, as though it is waiting for disk access.

I am pretty sure it’s not waiting for disk access though as my thunderbolt disk gives me 4 GB/second read which should be sufficient I think… to be fair even if I was running from a hard disk the game should be coded in a way that it would pre-load required assets in to RAM so that I don’t have to suffer choppy gameplay.

What do you think is causing this guys? I have heard possibly Metal, but most of these issues are from 2019 and should be sorted out by now right?

Thanks in advance

2

My 2015 imac had a lag spike during the first fight but never after.

All I can think of doing is reducing shaders/effects slightly

3

Oh, so it’s not just me.

4

Big Sur is a Big Mess, just downgraded my imac 27 5k to 10.11.6 elcapitan.

Starcraft2 and Hearthstone works fine, Hots won’t work…

Blizzard sell something around 2015 and then stop support it. Bravo.