Question / Help OBS lag after 1 VHS transfer


New Member
Hello everyone, i'm new to the forum and been using OBS since yesterday.
I'm in the process of transferring VHS tapes with a video grabber, and i started yesterday with my first tape, this went fine with no trouble, now after this OBS Started ''stuttering/lagging'' in my second video recording.
I can't see it being my computer as it has these settings:

AMD FX 8350 8-core, 4,4ghz
GTX 1050 2 GB videocard
16 GB Ram
1 TB of harddrive space.

What are the best settings i can use to solve this?