My Adobe Premiere Pro CC 2019 is Working So Slow?!

As Peru Bob stated, that's about the best that your particular laptop can do. Nothing whatsoever will help that PC perform well. Your CPU has only 2 cores and 4 threads, to begin with. Worse, it is a low-power, low-clock speed CPU. Worse still, your laptop has no discrete GPU whatsoever, and no discrete VRAM for the GPU. Instead, your laptop relies solely on integrated Intel graphics that steal 6 GB of RAM away from your system when the iGPU is utilized for video processing. That results in your system effectively having less than 2 GB of total system RAM available for the OS and Premiere Pro combined. That's nowhere near enough to run Premiere Pro at all. The RAM that's stolen by the iGPU eats far into the amount that you allocated for Premiere Pro. No wonder why your system choked even worse than it normally would have.

I also saw that report, and you do not have enough available physical RAM to run Premiere Pro at all. Only 3.75 GB (well, "GB" in terms of RAM should be "GiB," meaning "Gibibytes") of physical RAM is available for programs - period. Most of the rest is eaten up by the OS and its required processes. And the integrated graphics eats up a huge chunk of that puny 3.75 GB of available physical RAM (the iGPU can only use physical RAM, and cannot utilize any virtual RAM whatsoever, and when the iGPU demands more physical RAM than is available, the PC will choke badly under pressure with a crash or a forced automatic reboot). So, do not trust Adobe's minimum system requirements. The practical minimum hardware requirement is a lot higher than that. It should have stated "8 GB minimum available physical RAM," not just 8 GB total RAM. 16 GB or more available physical RAM is recommended. Always look at the "Available Physical Memory," not just at the "Installed Physical Memory" or the "Total Physical Memory," when determining whether your PC has enough RAM to run Premiere Pro.

And Adobe's system requirements do not include an integrated GPU at all. Instead, it assumes that you'll be relying solely on a separate discrete GPU with its own discrete VRAM for all video display and GPGPU-accelerated processing. If your system does not have a discrete GPU, you'll need more than 16 GB of RAM installed just to avoid choking so badly - and even then, your system's performance will remain sluggish.