Vous pouvez définir la valeur de progression comme vous le souhaitez avec mon GlideImageLoader. 
J'espère que cela résoudra votre question.

J'encapsule le chargeur d'image avec la progression dans GlideImageLoader.java & ProgressAppGlideModule .java
Comment mettre en œuvre en 3 étapes:
1. build.gradle
//Glide
implementation 'com.github.bumptech.glide:glide:4.4.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.4.0'
implementation 'com.github.bumptech.glide:okhttp3-integration:4.4.0'
2. Clonez GlideImageLoader.java & ProgressAppGlideModule.Java dans votre projet
3. Utilisation simple partout
RequestOptions options = new RequestOptions()
                    .centerCrop()
                    .placeholder(R.drawable.placeholder)
                    .error(R.drawable.ic_pic_error)
                    .priority(Priority.HIGH);
new GlideImageLoader(YOUR.imageView,  
                     YOUR.progressBar).load(url,options);
Code Java complet pour le clonage:
GlideImageLoader.java
public class GlideImageLoader {
    private ImageView mImageView;
    private ProgressBar mProgressBar;
    public GlideImageLoader(ImageView imageView, ProgressBar progressBar) {
        mImageView = imageView;
        mProgressBar = progressBar;
    }
    public void load(final String url, RequestOptions options) {
        if (url == null || options == null) return;
        onConnecting();
        //set Listener & start
        ProgressAppGlideModule.expect(url, new ProgressAppGlideModule.UIonProgressListener() {
            @Override
            public void onProgress(long bytesRead, long expectedLength) {
                if (mProgressBar != null) {
                    mProgressBar.setProgress((int) (100 * bytesRead / expectedLength));
                }
            }
            @Override
            public float getGranualityPercentage() {
                return 1.0f;
            }
        });
        //Get Image
        Glide.with(mImageView.getContext())
                .load(url)
                .transition(withCrossFade())
                .apply(options.skipMemoryCache(true))
                .listener(new RequestListener<Drawable>() {
                    @Override
                    public boolean onLoadFailed(@Nullable GlideException e, Object model, Target<Drawable> target, boolean isFirstResource) {
                        ProgressAppGlideModule.forget(url);
                        onFinished();
                        return false;
                    }
                    @Override
                    public boolean onResourceReady(Drawable resource, Object model, Target<Drawable> target, DataSource dataSource, boolean isFirstResource) {
                        ProgressAppGlideModule.forget(url);
                        onFinished();
                        return false;
                    }
                })
                .into(mImageView);
    }
    private void onConnecting() {
        if (mProgressBar != null) mProgressBar.setVisibility(View.VISIBLE);
    }
    private void onFinished() {
        if (mProgressBar != null && mImageView != null) {
            mProgressBar.setVisibility(View.GONE);
            mImageView.setVisibility(View.VISIBLE);
        }
    }
}
ProgressAppGlideModule.java
@GlideModule
public class ProgressAppGlideModule extends AppGlideModule {
    @Override
    public void registerComponents(Context context, Glide glide, Registry registry) {
        super.registerComponents(context, glide, registry);
        OkHttpClient client = new OkHttpClient.Builder()
                .addNetworkInterceptor(new Interceptor() {
                    @Override
                    public Response intercept(Chain chain) throws IOException {
                        Request request = chain.request();
                        Response response = chain.proceed(request);
                        ResponseProgressListener listener = new DispatchingProgressListener();
                        return response.newBuilder()
                                .body(new OkHttpProgressResponseBody(request.url(), response.body(), listener))
                                .build();
                    }
                })
                .build();
        registry.replace(GlideUrl.class, InputStream.class, new OkHttpUrlLoader.Factory(client));
    }
    public static void forget(String url) {
        ProgressAppGlideModule.DispatchingProgressListener.forget(url);
    }
    public static void expect(String url, ProgressAppGlideModule.UIonProgressListener listener) {
        ProgressAppGlideModule.DispatchingProgressListener.expect(url, listener);
    }
    private interface ResponseProgressListener {
        void update(HttpUrl url, long bytesRead, long contentLength);
    }
    public interface UIonProgressListener {
        void onProgress(long bytesRead, long expectedLength);
        /**
         * Control how often the listener needs an update. 0% and 100% will always be dispatched.
         * @return in percentage (0.2 = call {@link #onProgress} around every 0.2 percent of progress)
         */
        float getGranualityPercentage();
    }
    private static class DispatchingProgressListener implements ProgressAppGlideModule.ResponseProgressListener {
        private static final Map<String, UIonProgressListener> LISTENERS = new HashMap<>();
        private static final Map<String, Long> PROGRESSES = new HashMap<>();
        private final Handler handler;
        DispatchingProgressListener() {
            this.handler = new Handler(Looper.getMainLooper());
        }
        static void forget(String url) {
            LISTENERS.remove(url);
            PROGRESSES.remove(url);
        }
        static void expect(String url, UIonProgressListener listener) {
            LISTENERS.put(url, listener);
        }
        @Override
        public void update(HttpUrl url, final long bytesRead, final long contentLength) {
            //System.out.printf("%s: %d/%d = %.2f%%%n", url, bytesRead, contentLength, (100f * bytesRead) / contentLength);
            String key = url.toString();
            final UIonProgressListener listener = LISTENERS.get(key);
            if (listener == null) {
                return;
            }
            if (contentLength <= bytesRead) {
                forget(key);
            }
            if (needsDispatch(key, bytesRead, contentLength, listener.getGranualityPercentage())) {
                handler.post(new Runnable() {
                    @Override
                    public void run() {
                        listener.onProgress(bytesRead, contentLength);
                    }
                });
            }
        }
        private boolean needsDispatch(String key, long current, long total, float granularity) {
            if (granularity == 0 || current == 0 || total == current) {
                return true;
            }
            float percent = 100f * current / total;
            long currentProgress = (long) (percent / granularity);
            Long lastProgress = PROGRESSES.get(key);
            if (lastProgress == null || currentProgress != lastProgress) {
                PROGRESSES.put(key, currentProgress);
                return true;
            } else {
                return false;
            }
        }
    }
    private static class OkHttpProgressResponseBody extends ResponseBody {
        private final HttpUrl url;
        private final ResponseBody responseBody;
        private final ResponseProgressListener progressListener;
        private BufferedSource bufferedSource;
        OkHttpProgressResponseBody(HttpUrl url, ResponseBody responseBody,
                                   ResponseProgressListener progressListener) {
            this.url = url;
            this.responseBody = responseBody;
            this.progressListener = progressListener;
        }
        @Override
        public MediaType contentType() {
            return responseBody.contentType();
        }
        @Override
        public long contentLength() {
            return responseBody.contentLength();
        }
        @Override
        public BufferedSource source() {
            if (bufferedSource == null) {
                bufferedSource = Okio.buffer(source(responseBody.source()));
            }
            return bufferedSource;
        }
        private Source source(Source source) {
            return new ForwardingSource(source) {
                long totalBytesRead = 0L;
                @Override
                public long read(Buffer sink, long byteCount) throws IOException {
                    long bytesRead = super.read(sink, byteCount);
                    long fullLength = responseBody.contentLength();
                    if (bytesRead == -1) { // this source is exhausted
                        totalBytesRead = fullLength;
                    } else {
                        totalBytesRead += bytesRead;
                    }
                    progressListener.update(url, totalBytesRead, fullLength);
                    return bytesRead;
                }
            };
        }
    }
}