New Features in Optimizer Analysis

Optimizer now analyzes your implementations’ static resource limits and formula fields.
Available in: Professional, Enterprise, Performance, Unlimited, and Developer Editions

Optimizer reports on the following feaures in its analysis.
Formula Fields that Contain JavaScript Code
Optimizer analyzes your existing formula fields to determine if they contain JavaScript code, which can cause security issues. If Optimizer finds JavaScript code in formula fields, it recommends that you replace them.
Static Resource Limits
Optimizer determines if you’re approaching static resource limits in your implementation.