Batch code that converts a string to uppercase in lower case and outputs a delayed response

Question objective
1. Master the big and lowercase interchange skills
2. Master latency output skills
3. Master character truncation techniques
Problem-solving requirements
1. Ensure Code Efficient and universal
2. Try to make code as concise as possible
3. Do not generate temporary files
Extra score rules
1 unique Train of Thought benchmark score 5 points
2 code efficiency, general benchmark score: 4 points
3. Superb Skills, benchmark score: 3 points
4. Simple code benchmark: 2 points
5. Perfect code + 15 points
The questions are as follows:
There is a string I like the bathome, because here is the batch of the world.
Batch Processing is required to convert all the letters of the string into uppercase and output the strings in a delayed manner based on the typing effect on the screen.
Limits
Not Limited

BATMAN:Copy codeThe Code is as follows: @ echo off
Set "str = I like the bathome, because here is the batch of the world ."
Set "code = a B c d e f g h I j k l n m o p q r s t u v w x y z"
For % I in (% code %) Do call, set "str = % STR: % I = % I %"
: Lp
Set/P = % STR :~, 1% <NUL & set "str = % STR :~ 1%"
For/L % I in (1,1, 200) Do echo> NUL
If defined STR goto lp
Pause> NUL

Terse:Copy codeThe Code is as follows: @ echo off & setlocal enabledelayedexpansion
Set "str = I like the bathome, because here is the batch of the world ."
For % I in (a B c d e f g h I j k l m n o p q r s t u v w x y z) do set STR =! STR: % I = % I!
: Lp
Set/P =! STR :~ % N %, 1! <NUL
Set/a n + = 1
For/L % J in (1, 1, 500) Do ver> NUL
If not "! STR :~ % N %, 1! "=" "Goto lp
Pause> NUL