Investors & landlords

I expect my 2023 income will be a lot less than in 2022.  The estimated tax for 2023 was automatically calculated for me based on 2022 when I had a large capital gain from sale of rental property. Can I simply delete the estimated tax option form?  Will I be subject to estimated tax payment requirement in 2023 even though my income is much lower but will still owe taxes?  If so, how do I calculate the estimated tax then? Is investment income (interest/dividends) charged at a different tax rate than earned income?

 

Thank you!