GoLang - I need to optimized a script I created on Go

I created GO Scripts that I need to optimize. The script is 100% working but I would like to go over my code and perhaps optimized the code.

sudo code for the script

Read Go programs argument
load user
load user filter
while loop {
HTTP call to request info from server --> output json array
iterate through array
}

for me speed is very critical that is why my code needs to be optimized at its fully.