I converted a 5cm drone image to MRF with LERC compression. Original is TIFF with JPEG compression. Size has inflated 3 times. Is this normal? What is the best format to keep the size down and get good performance in the web?
You may want to take a look at Cloud Optimized TIFF, but it depends on your specific use case.
GitHub - Esri/OptimizeRasters: OptimizeRasters is a set of tools for converting raster data to optim...
OptimizeRasters/Documentation/OptimizeRasters_UserDoc.pdf at master · Esri/OptimizeRasters · GitHub (PDF with good information on the different formats)