Start with the highest settings supported by your Lenovo.
If they work that is it.
If not, try the next step down....
You should be able to find some specific recommendations at OBS's website:
https

/obsproject.com/forum/list/guides.25/
One forum member posted a guide:
https

/obsproject.com/forum/threads/full-video-guide-for-obs-studio-and-twitch.46303/
Cannot attest to the Guide per se but it may prove of some value with respect to your requirements.
Or provide a lead to some specific setting(s).