[Mashiro]

The main reason for a slow experience in Android emulator is lack of computing power and resources. What is your hardware setup? Do you have hardware virtualization on your CPU enabled? Are you running the emulator of a HDD or SSD? If you are running it of a HDD is it running from the same HDD from which your OS is running and everything else?

On my old computer I have a Intel Core i5-6500 with 16 GB RAM and a SSD only setup with two SSDs. I used Bluestacks and the Android emulator itself was running absolutely fine performance wise because I had it a) on the second SSD seperated from the SSD where the OS was running and b) I have enough resources and power plus c) I have hardware virtualization enabled in the CPU settings of my BIOS/EFI/UEFI. However Despite having so much power the experience wasn't 100% smooth. Games were rather bad for example because I only had the Intel HD 530 of the Intel CPU and no dedicated graphics card. Some other more heavy apps also had some kind of issues where it would lag the system and crash sometimes.

Android emulators are still not perfect but they do benefit a lot from a powerful machine. Also running things from the same HDD or SSD where your OS is and from where other programs are running is rather bad. Especially with HDDs the performance is horrible.