The first load is very slow, about 15 seconds each time, but the internal jump is very fast. How to solve this problem

[DemonHunter211]

The first load is very slow, about 15 seconds each time, but the internal jump is very fast.
When I first visited http://127.0.0.1:3000/ Or http://127.0.0.1:3000/edit/%2F1.png Very slow, but when I finish loading http://127.0.0.1:3000/ Then access through internal links http://127.0.0.1:3000/edit/%2F1.png At that time, it was very fast
How to solve this problem thanks

[DemonHunter211]

I looked at the browser network and found
/sockjs/info? cb=00_vhu_4hz xhr sockjs-0.3.4.js:860
Being in a pending state for a long time

I have modified the socketjs-0.3.4.js file in this directory
.meteor/packages/socket-stream-client/.0.3.1.1dx4ad.o2zgw++os+web.browser+web.browser.legacy+web.cordova/web.browser/
then run meteor reset && meteor npm start
Frequent compilation errors, even with the addition of a comment or console. log ("test")
it is strange that