Vacuum energy should partition into potential and kinetic parts that are almost equal in nearly flat space.

The Lagrange Density is near zero and defines a small cosmological constant no matter how large the total energy is.

Dear Jerry

Thank you for the interesting comment.

I think we need to describe the vacuum energy

without using the uncertainty principle.

Λ= 4 π G ρvac + Λ0

• ρvac is vacuum energy density
• Λ0 is a possible counter term which depends on the theory being considered
• Λ is the cosmological constant

See for example the following review: https://arxiv.org/pdf/1503.05483.pdf