1. Fast distance between points
2. Fast convex hull
3. Fast vector operations
4. Fast zonal statistics
5. Fast polygon rasterization
6. Fast combining objects
7. GDAL
8. Multi-threaded csv file loading
9. SQL preselection
10. Fast polygon grid creation
11. Fast points reprojection
12. Fast loading and saving of GeoJSON
13. Faster conversion from sf to WKT

Contributions are welcome. I would love to hear what tricks you use!

Blogposts:

• Fast Inverse Distance Weighting (IDW) Interpolation with Rcpp by Sebastian Brinkmann
• Geospatial distributed processing with furrr by Ryan Garnett
• Speeding up spatial analyses by integrating sf and data.table: a test case by Lorenzo Busetto
• Parallel raster processing in stars by Krzysztof Dyba

R and Python spatial packages benchmark:

• Raster processing
• Vector processing