sometimes it is not the Logic, that causes your code to run slow, but the Input reading or Output writing. In your case, cosole.log is causing it. I do not know the underlying reason, I never work with that language.
fix:
// your code goes here
process.stdin.resume()
process.stdin.setEncoding('utf-8')
let inputString=''
process.stdin.on('data',(input)=>{inputString+=input})
process.stdin.on('end',()=>{main()})
function main(){
const inpurArr = inputString.split('\n')
const nTest= inpurArr.shift()
let result = '';
for(let i=0;i<nTest;i++){
result += parseInt((parseInt(inpurArr[i])/2)+1) + '\n'
}
console.log(result)
}