I personally would delete the T1 in the first line. I’d add a G90 too. I’d get rid of the S code if you don’t have a spindle that can be controlled internally, and the M3 as well in the 5th line.
I have found that it’s just easier to remove all the codes that aren’t necessary. Many of them don’t seem to work in my version of UGS including m5 and m30.