"my CPU is dying"
Time to backup your files and folders to an external to free up some space on your hard drive? You running any background programs you could stop to free up memory? Hard to believe a short song like this could overload your machine. How potato of a computer is it? Maximum potato? Wall-Mart potato? I had to use my mom's laptops in my mid 20's, I had no idea why anyone would even buy machines so cheap. She had two extra laptop I could use and they both sucked. Literally upgraded the situation by spending $300 and building my own machine, ran Windows XP. Handled Reason just fine, no slow downs. Ran on it for years.
Money can be tight, sorry if you're in that stage of life where paying rent and chasing dreams collide. It can be a fatal combination that feels depressingly challenging. Keep in mind that music can always wait, survival can't. Feel free to hit me up Nacho.
The melodies had a cool progression. Starting with that driving bass line, into the reverb lead, followed by the soft attack and decay sawtooth, and working into the arpy saw progression... perfect. Only critical feedback I got would be that final saw lead, it's the same at the end as it was when you first introduced it. An easy direction to go would be to jump some of the notes higher an octave or experiment with a few pitch slides. The last four notes on that lead melody could echo into higher octaves...
I'm sorry your machine held you back but I'm glad you got to join in on the pixel day festivities darling. Track bangs <3
EDIT: my pc was lagging a lot during games. Was caused by my desktop wallpaper, set it to change every five minutes. Turning that off fixed my problem, wish I thought about it sooner...