Since you mentioned that the tool that act's like Mac's Spotlight was very slow. I have found two better alternative which works wonders:
1. FluentSearch: https://www.fluentsearch.net/. I highly recommend trying this out. It's magically and amazing, and I think this is the closest a tool has got to Spotlight on windows and also has amazing amounts of customizability. I recommend using Everything as the Search Provider, which is tried and tested solution for searching on windows.
2. Keypirinha: https://keypirinha.com/. This is another amazing tool. I believe it's would be a bit faster compared to FluentSearch with my initial tryout, but it is customized using a text file.
1. FluentSearch: https://www.fluentsearch.net/. I highly recommend trying this out. It's magically and amazing, and I think this is the closest a tool has got to Spotlight on windows and also has amazing amounts of customizability. I recommend using Everything as the Search Provider, which is tried and tested solution for searching on windows.
2. Keypirinha: https://keypirinha.com/. This is another amazing tool. I believe it's would be a bit faster compared to FluentSearch with my initial tryout, but it is customized using a text file.