Question Problems with Lenovo Yoga 500 14IBD

[WindF]

Hi guys, you are my last chance. It's been a few months since my Lenovo Yoga 500 14IBD is running very slow. For each activity I have to wait several seconds (3-4 seconds to open Chrome). No real difference between internet and system usage. I've added a kingston ssd + 8gb ram + 2 clean installs of windows in the last month, but almost nothing has changed. I have updated the BIOS and all other drivers both through Windows Update and manually. I suspended all the activities I could on startup. I have noticed that sometimes for about 10-15 minutes it runs very smooth (very rare) but then goes back to the same slowness. I didn't notice any difference in task manager during these two different phases: cpu 1%, memory 30% if I do nothing (antimalware service executable seems to use most of the memory), if I open chrome it goes up to CPU 25-30%, memory 40-45% .
What am I missing?
If I don't solve it, I abandon the PC, it took me too much time.
Thanks in advance

 

[rgd1101]

what the ssd size? how full it is?

 

[WindF]

what the ssd size? how full it is?

250gb and is almost empty

 

[rgd1101]

almost empty, so that not the system drive?

 

[WindF]

almost empty, so that not the system drive?

Yes it is.
C local disk: 222 gb, used 41.1 gb (system files 29.8 gb)
Thanks

 

[rgd1101]

on power saving mode or performance?
just chrome having issue?

 

[WindF]

on power saving mode or performance?
just chrome having issue?

Yes. Unfortunately I tried with balanced mode and performance, nothing changed. Every application is slow. Sometimes it's difficult even drag a folder.

 

[rgd1101]

what the cpu temp? what freq it running?

 

[WindF]

what the cpu temp? what freq it running?

Max 38°. Frequency 498.66 mhz