Inspiron 15 7567 low performance

Have you updated the graphics drivers from the nVidia website?

Yes i have, i tried drivers only from dell site, but it didnt help me, so i had to download drivers manually but still same problem..

Renew ("factory reset") didn't help. Dell test in their software SupportAssist think everythink is ok, both of test (fast and stress). CPU was hitting 80°C when I was playing.. Dell changed my motherboard and fans and temperature is lower by 10°C so thats fine but performance is still missing..

Maybe a complete reset does the trick? If not I should contact Dell about this. On the site of Dell you can run a diagnostic, it will tell you if it is a hardware problem.

Even a browser is laggy a lot.. 

I would suggest to go to user bench marks to be able to trouble shoot where you may be having performance problems.

http://www.userbenchmark.com/

Download their benchmark.exe program and run that.  It will tell you how your laptop is performing compared to others with the same system and point out low performance h/w items.

I recently purchase an Inspiron 7570 which is not a gaming laptop like yours, so comes with a lower grade GeForce 940MX GPU.  What I noticed after running the user bench mark program, that out of the box my laptop was configured to use the built-in Intel UHD 620 GPU instead of the Nvidia GPU where I needed to go to the Nvidia Control panel and reconfigure the system to use the GeForce 940MX GPU instead.  If you haven't reconfigured your laptop to use the GTX 1050 GPU that yours comes with, it could very well be possible that is the source of your problems of poor performance when gaming.  It will show/confirm that scenario after running the Userbenchmark app as well.

Run the userbenchmark program and post the weblink of your performance.

Here was the performance of my 7570 out of the box.  Notice it was using the Intel UHD 620 GPU.

http://www.userbenchmark.com/UserRun/6722024

Then I reconfigured it to use the 940MX and got an increase in the gaming performance.

http://www.userbenchmark.com/UserRun/6724816

Then I added a Samsung 960 EVO SSD, migrated the OS to it and added 16GB additional ram, and here is how my system is currently performing.

http://www.userbenchmark.com/UserRun/6777104

Thanks for your reply.. 

I check every time if i have nvidia as "primary" gpu

there's benchmark results

http://www.userbenchmark.com/UserRun/6813753

Do you think that's ok?

Some things jump out right away and they're in the comments of the bench mark results as well.

GPU: 30.2% is a below average 3D score (GTX 1070 = 100%). This GPU can handle older games but it will struggle to render recent games at resolutions greater than 1080p. (Note: general computing tasks don't require 3D graphics)

If you scroll down to the GPU section you will also see the performance of your GPU is in the "Performing way below expectations (13th percentile)".  Which means out of other users with this same GPU, 87% of those users have better performance out of that same GPU.

Here's another item mentioned:

"High background CPU (29%). High background CPU reduces benchmark accuracy. Find active processes with Windows task manager (CTRL+SHIFT+ESC)"

It seems to be telling you, that you have a lot of things running in the background consuming CPU.

The good thing is that you are not using the built-in Intel GPU, but your Nvidia GTX 1050-Ti is performing poorly.

 You need to try some different drivers and likely go into the Nvidia control panel and make some adjustments.  You will likely need to make some adjustments more towards "Performance" and less towards "Quality".  I really don't think you're going to get 60FPS @ 1080p out of that GPU like you're trying to do.  Moving towards Performance will help get better frame rates, but the trade off is that you will get more jagged edge graphics which may or may not be noticeable.

95% background processes there are till i buy it.. :/ 

i have changed setting to performance in nvidia control panel.. At my old laptop it helps a lot.. but theres like nothing happend..

So.. you think some older drivers for nvidia can be a solution?

It's happened before where new drivers have caused problems with certain systems.

Getting drivers directly from Nvidia is typically a good thing, but they haven't been tested by Dell and that's the reason there are always version differences between what Dell has on their site and what the latest is on the Nvidia site.

I would try installing the driver that is on Dell's site, reboot and then re-run the Bench Mark check and make a note if the GPU performance and CPU background task problems improved, got worse, or stayed the same.  That's what I really like about that Bench mark site, it helps you troubleshoot performance problems by being able to check which direction your performance goes in, after each time you make a change.

http://www.userbenchmark.com/UserRun/6820141

secondary test

http://www.userbenchmark.com/UserRun/6820243

Well known power throttling issue here!

https://www.dell.com/support/article/bg/en/bgdhs1/sln305033/alienware-15-r3-17-r4-overheat-performan...

http://forum.notebookreview.com/threads/7700hq-power-limit-throttling.805765/

Good thing I didn't get the Alienware for triple the price with the same issues!!

https://www.dell.com/community/Inspiron/Inspiron-15-7567-low-performance/td-p/5649812/highlight/false

I run the World of Tanks enCore game engine demo - I also had Intel Extreme Tuning Utility opened. After 2 minutes of running the engine demo the Extrene Tuning Utility displayed that the system gets POWER THROTTLED!!!!

And the CPU in this demo is not even loaded more that 40%!

I don't play games so this issue doesn't bother me much yet but it is still unacceptable. I asked Intel and they said this is BIOS issue that needs to be fixed by the laptop vendor.

BTW Check this:

https://www.youtube.com/watch?v=U6LgeE56cQ4

https://www.youtube.com/watch?v=ZxpY72Wat3c

Also Dell advises to downgrade Windows 10 to some ancient version to fix the issue! I think to a version before Windows 10 Anniversary. UNACCEPTABLE!

EDIT: I found the thread: https://www.dell.com/community/General/7700HQ-throttled-to-a-crawl/m-p/5165325#M932626