slow production building in typescript

[shengnoyi]

I am developing a project using typescript and creact-react-app.
My problem is that it takes a long time for cra to make a production build.

I dont' make a code spliting to this project now.Should I do this for speeding up my building speed.

Here is the diagnostics:

$ npx tsc --extendedDiagnostics
dFiles:                        1953
Lines:                      269773
Nodes:                      991174
Identifiers:                351036
Symbols:                    481817
Types:                      125320
Instantiations:             720548
Memory used:               465247K
Assignability cache size:    66789
Identity cache size:          5368
Subtype cache size:           5569
Strict subtype cache size:    6962
I/O Read time:               1.15s
Parse time:                  1.70s
ResolveTypeReference time:   0.05s
ResolveModule time:          1.33s
Program time:                4.50s
Bind time:                   1.17s
Check time:                  9.60s
Total time:                 15.28s

It take almost 6 mins to finish building even though i disable forkTsCheckerPlugin by the help of react-app-rewired.

[shengnoyi]

Code spliting helps speeding up compiling codes.