Wow, u are really very detailed with your academic achievements. I think this works to your disadvantage as your grades are not outstanding. I would do more to not tell (remember not telling everything is not lying) some aspects of your academic achievements.

For the degree, just put 2nd class honours. Only tell what division if forced to.

For the Diploma, just write diploma. Why need the CGPA? Only tell it if you are forced to.

SPM. Its been some time since my SPM. If they still have the pangkat system(e.g: pangkat 1 and so on), just state your grade, no need to specify in detail your grades.