How to extract pixel value from geometry points in shp format (2500 points) starting from an Image Collection resempled - performance

Question

I'm trying to extract the value of each single band of Sentinel-2 after resampling the bands from 10 meters to 30 meters using the resolution of the Landsat-8 (I didn't know how to do this in another way)
This is the code using band 4 as an example. When I try to export the values ​​in a table the running time is infinite and I was not able to extract even the value for a single point.
N.B. my area is very large, it corresponds to all of southern europe
thank you !
function maskS2clouds(image) {
var qa = image.select('QA60');
var cloudBitMask = 1 << 10;
var cirrusBitMask = 1 << 11;
var mask = qa.bitwiseAnd(cloudBitMask).eq(0).and(qa.bitwiseAnd(cirrusBitMask).eq(0));
return image.updateMask(mask).divide(10000).select("B.*").copyProperties(image, ["system:time_start"]);
}
var start = '2012-01-01';
var end = '2022-12-31';
var cld_max = 30;
var s2 = ee.ImageCollection("COPERNICUS/S2_SR_HARMONIZED")
.filterBounds(Eur)
.filterDate(start,end)
.filter(ee.Filter.lt('CLOUDY_PIXEL_PERCENTAGE',60))
.map(maskS2clouds);
var land8 = ee.ImageCollection('LANDSAT/LC08/C01/T1_SR').filterBounds(Eur)
var b4 = land8.select('B4').filterBounds(Eur); // 30-m resolution
var b4s = s2.select('B4').filterBounds(Eur); // 10-m resolution
var proj_10m = b4.first()
.projection();
function resample(image) {
var b4s = image.select('B4');
var b4s_res = b4s.resample('bilinear').reproject(proj_10m);
return b4s_res;
}
var b4s_res =b4s.map(resample).filterBounds(Eur);
//original code
var pts = b4s_res.map(function(img) {
var obs = img.reduceRegion(
{geometry: points , reducer: ee.Reducer.median(), scale: 80});
return img.set('B4', obs.get('B4'));
});
Export.table.toDrive({
collection: pts,
description: 'table_csv',
folder: 'earth_engine_demos',
fileFormat: 'CSV'
});
//test with geometry composed of two single points
var pts2 = b4s_res.map(function(img) {
var obs2 = img.reduceRegion(
{geometry: geometry , reducer: ee.Reducer.median(), scale: 80});
return img.set('B4', obs2.get('B4'));
});
Export.table.toDrive({
collection: pts2,
description:'prova_csv',
folder: 'earth_engine_demos',
fileFormat: 'CSV'
});
Is it possible to find a faster way to extract the value of the points (2500 random points) in the table? Do you also know another way to apply a resampling on all bands simultaneously and extract the corresponding value of each point for each single band?