Hello @ferreirex,
We have two official self-host solutions: Self-Host Penpot: Powerful Design Tool
We have many comments that self-host helps with some lag problems. Chrome is the faster and most efficient browser when working with Penpot. File size and layers amount affect the performance. Consider dividing your work in more files and more pages to get better performance.
Also, Penpot desktop is community contribution. To know more about it, check this out: