Lordship salvation says that unless a person exhibits perfect works all the time, then they cannot be saved.
The reality is is that sanctification occurs over a lifetime, not in a moment when a person makes the choice to accept Christ's death on the cross as payment for his sin. A person's life does indeed change after salvation, but for some it takes years and years, depending on their circumstances and the person himself and for others it happens quickly. God knows us better than we know ourselves and only God knows how to grow each and every person spiritually. It is not for others to judge.
A changed life and submission to Christ's lordship are the result of salvation, not a requirement for salvation.
Salvation is the condition a person is in after they make the choice to accept Christ as Savior. No one is claiming that Christ is somehow detached from the salvation that only He can provide.
“Lordship salvation says that unless a person exhibits perfect works all the time, then they cannot be saved.”
It certainly does not. Show me one advocate of Lordship salvation that says anything close to that.