My i5-4690k is definitely showing its age. Especially since I have a Titan X Pascal that gets bottlenecked hard. The cpu in my 4 year old non-gaming laptop is more powerful
Trilium. Tried a bunch but fell in love with this one. Others either didn't have support for inline math or weren't wysiwyg (Joplin). Also easy syncing between computers with its own server in docker, and it even doubles as a web version of the app.
I suggest locking your doors, a very angry crowd is likely to arrive shortly