chore: use fast-copy by default

src/core/modules/StateEvaluator.ts

@@ -97,7 +97,7 @@ export class DefaultEvaluationOptions implements EvaluationOptions {
 
   gasLimit = Number.MAX_SAFE_INTEGER;
 
-  useFastCopy = false;
+  useFastCopy = true;
 }
 
 // an interface for the contract EvaluationOptions - can be used to change the behaviour of some of the features.
@@ -149,6 +149,6 @@ export interface EvaluationOptions {
   // Whether fast-copy library should be used during the state evaluation
   // https://github.com/planttheidea/fast-copy#isstrict
   // it's much faster (e.g. almost twice for the SJ3l7474UHh3Dw6dWVT1bzsJ-8JvOewtGoDdOecWIZo contract)
-  // but not yet fully tested - so exposing it as an option (with default to false)
+  // currently defaults to true
   useFastCopy: boolean;
 }