Lag in Cubase

I am having trouble with Cubase. I’ve been going through IVF treatment for the past few weeks, which has been very emotional and tough for me. I usually use Cubase for making music because it helps me feel better during stressful times, but a few days back, I noticed some problems.

My CPU usage is really high now, and the program is lagging a lot, especially when I’m using multiple VSTs or even when I try to work on simple projects with just a few tracks. Well, this has never happened before. Is anyone else facing the same problem?

Hello and welcome to the forum,

can you be a bit more specific? Which Cubase version? Which operating system?
Is your real CPU usage high or the Cubase Performance Monitor (which is not CPu usage)? What exactly does “lagging” mean?
Is there anything that might have changed on your system? Like an update?
Do you have an antivirus software running? Make sure that you configure that to ignore Cubase while scanning (or just disable it temporarily for testing).