[0.17.4] FPS drops to ~33 in 0.17 even in brand new game, but get 60 consistently in 0.16.51 even on much larger bases

[CtrlZ]

Even spinning up a brand new world in 0.17.4, I see FPS drops to around 33:

[0.17.4] Hello World.jpg (3.54 MiB) Viewed 1450 times

When loading larger bases (not Mega or anything but a base that's launched a handful of rockets) on 0.16.51, I see healthy FPS/UPS.
Here's a larger base from 0.16.51 with 60/60 no issues:

[0.16.51] 60.jpg (4.3 MiB) Viewed 1450 times

Possibly related, I see UPS drop when zooming in. Here's my 0.17.4 base with one mining outpost and up to blue science (at the point where performance was dropping enough for me to post a bug report.
First zoomed in and UPS drops to around 40:

[0.17.4] Zoomed in UPS drops.jpg (3.42 MiB) Viewed 1450 times

Then zoomed out and UPS recovers to 60 (still with ~33 FPS)

[0.17.4] Zoomed out full UPS.jpg (3.86 MiB) Viewed 1450 times

My setup
* No mods
* Intel i7-6700 @ 3.40 GHZ
* 16 GB RAM
* Playing 3840x2160
* NVIDIA GeForce GTX 1070 - latest driver 25.21.14.1917 released 2019-02-20
* Used 'GeForce Experience' to try and tune:

nvidia.jpg (936.91 KiB) Viewed 1450 times

Debug Data
* Save from my smallish 0.17.4 base (with the zoom-in related UPS effects)

.17.zip

(6.42 MiB) Downloaded 67 times

* Save from my hello world 0.17.4 with 33 FPS before anything is built:

lowfps.zip

(1.09 MiB) Downloaded 82 times

* Current Log:

factorio-current.log

(4.91 KiB) Downloaded 89 times

* Previous Log:

factorio-previous.log

(4.72 KiB) Downloaded 70 times

Happy to provide any further debug info you might need. Loving the new features in 0.17, just wish I didn't hit this performance bug

Cheers,
Ctrl-Z

[Bilka]

That is one obscenely large flip time. My not-much-graphics-knowledgeable dev advice would be to turn off V-sync, it's also turned off in your 0.16 screenshot.

[CtrlZ]

Awesome - such an easy fix
No idea what vsync is, but when I unchecked 'wait for vsync', recovered immediately to 60/60.

Thanks for your help
CtrlZ

[posila]

Do you have G-sync display by any chance?