Calling sub-javascript chain is extremely costly

(test done with Nuxeo 2021.27.13, tomcat, Mac OS, embedded H2 and es - but we don't test data here anyways)

Say you have these simple JS automation:

// Test_AllIncluded
function run(input, params) {
 var tot = 0;
  for( var i = 0; i < 10000; i++) {
    tot += i;
  }
}

Similar, but calling a sub chain (not exactly the same, we don't sum the values, but it's OK for the test):

// With subchain
function run(input, params) {
 var tot = 0;
  for( var i = 0; i < 10000; i++) {
    javascript.theSubChain(input, {});
  }
}

The other chain:

// With javascript.theSubChain
function run(input, params) {
 var tot = 1;
}

The first one, when ran takes some dozens milliseconds (21). The second one takes seconds, literally dozens of seconds (45,000). This is a non DEV env, running the tomcat package on my Mac, but at this level of difference (like about thousands times slower), I believe the CPU, load and all is not an issue.

So, basically, a JS automation calling a JS automation takes way way too much time.