diff --git a/src/vs/editor/contrib/inlineCompletions/browser/ghostTextModel.ts b/src/vs/editor/contrib/inlineCompletions/browser/ghostTextModel.ts
index 02dd033f8cb71..a804be067ec9c 100644
--- a/src/vs/editor/contrib/inlineCompletions/browser/ghostTextModel.ts
+++ b/src/vs/editor/contrib/inlineCompletions/browser/ghostTextModel.ts
@@ -9,13 +9,11 @@ import { IActiveCodeEditor } from 'vs/editor/browser/editorBrowser';
 import { Position } from 'vs/editor/common/core/position';
 import { Range } from 'vs/editor/common/core/range';
 import { InlineCompletionTriggerKind } from 'vs/editor/common/languages';
-import { ILanguageConfigurationService } from 'vs/editor/common/languages/languageConfigurationRegistry';
-import { ILanguageFeaturesService } from 'vs/editor/common/services/languageFeatures';
 import { GhostText, GhostTextWidgetModel } from 'vs/editor/contrib/inlineCompletions/browser/ghostText';
 import { InlineCompletionsModel, SynchronizedInlineCompletionsCache, TrackedInlineCompletions } from 'vs/editor/contrib/inlineCompletions/browser/inlineCompletionsModel';
 import { SuggestWidgetPreviewModel } from 'vs/editor/contrib/inlineCompletions/browser/suggestWidgetPreviewModel';
 import { createDisposableRef } from 'vs/editor/contrib/inlineCompletions/browser/utils';
-import { ICommandService } from 'vs/platform/commands/common/commands';
+import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 
 export abstract class DelegatingModel extends Disposable implements GhostTextWidgetModel {
 	private readonly onDidChangeEmitter = new Emitter<void>();
@@ -69,8 +67,8 @@ export abstract class DelegatingModel extends Disposable implements GhostTextWid
 */
 export class GhostTextModel extends DelegatingModel implements GhostTextWidgetModel {
 	public readonly sharedCache = this._register(new SharedInlineCompletionCache());
-	public readonly suggestWidgetAdapterModel = this._register(new SuggestWidgetPreviewModel(this.editor, this.sharedCache, this.languageFeaturesService));
-	public readonly inlineCompletionsModel = this._register(new InlineCompletionsModel(this.editor, this.sharedCache, this.commandService, this.languageConfigurationService, this.languageFeaturesService));
+	public readonly suggestWidgetAdapterModel = this._register(this.instantiationService.createInstance(SuggestWidgetPreviewModel, this.editor, this.sharedCache));
+	public readonly inlineCompletionsModel = this._register(this.instantiationService.createInstance(InlineCompletionsModel, this.editor, this.sharedCache));
 
 	public get activeInlineCompletionsModel(): InlineCompletionsModel | undefined {
 		if (this.targetModel === this.inlineCompletionsModel) {
@@ -81,9 +79,7 @@ export class GhostTextModel extends DelegatingModel implements GhostTextWidgetMo
 
 	constructor(
 		private readonly editor: IActiveCodeEditor,
-		@ICommandService private readonly commandService: ICommandService,
-		@ILanguageConfigurationService private readonly languageConfigurationService: ILanguageConfigurationService,
-		@ILanguageFeaturesService private readonly languageFeaturesService: ILanguageFeaturesService,
+		@IInstantiationService private readonly instantiationService: IInstantiationService,
 	) {
 		super();
 
diff --git a/src/vs/editor/contrib/inlineCompletions/browser/inlineCompletionsModel.ts b/src/vs/editor/contrib/inlineCompletions/browser/inlineCompletionsModel.ts
index be0c4f7d49258..9545d8a1a6e8a 100644
--- a/src/vs/editor/contrib/inlineCompletions/browser/inlineCompletionsModel.ts
+++ b/src/vs/editor/contrib/inlineCompletions/browser/inlineCompletionsModel.ts
@@ -26,56 +26,80 @@ import { ILanguageConfigurationService } from 'vs/editor/common/languages/langua
 import { fixBracketsInLine } from 'vs/editor/common/model/bracketPairsTextModelPart/fixBrackets';
 import { LanguageFeatureRegistry } from 'vs/editor/common/languageFeatureRegistry';
 import { ILanguageFeaturesService } from 'vs/editor/common/services/languageFeatures';
+import { IFeatureDebounceInformation, ILanguageFeatureDebounceService } from 'vs/editor/common/services/languageFeatureDebounce';
 
-export class InlineCompletionsModel extends Disposable implements GhostTextWidgetModel {
+export class InlineCompletionsModel
+	extends Disposable
+	implements GhostTextWidgetModel {
 	protected readonly onDidChangeEmitter = new Emitter<void>();
 	public readonly onDidChange = this.onDidChangeEmitter.event;
 
-	public readonly completionSession = this._register(new MutableDisposable<InlineCompletionsSession>());
+	public readonly completionSession = this._register(
+		new MutableDisposable<InlineCompletionsSession>()
+	);
 
 	private active: boolean = false;
 	private disposed = false;
+	private readonly debounceValue = this.debounceService.for(
+		this.languageFeaturesService.inlineCompletionsProvider,
+		'InlineCompletionsDebounce',
+		{ min: 50, max: 200 }
+	);
 
 	constructor(
 		private readonly editor: IActiveCodeEditor,
 		private readonly cache: SharedInlineCompletionCache,
 		@ICommandService private readonly commandService: ICommandService,
-		@ILanguageConfigurationService private readonly languageConfigurationService: ILanguageConfigurationService,
-		@ILanguageFeaturesService private readonly languageFeaturesService: ILanguageFeaturesService,
+		@ILanguageConfigurationService
+		private readonly languageConfigurationService: ILanguageConfigurationService,
+		@ILanguageFeaturesService
+		private readonly languageFeaturesService: ILanguageFeaturesService,
+		@ILanguageFeatureDebounceService
+		private readonly debounceService: ILanguageFeatureDebounceService
 	) {
 		super();
 
-		this._register(commandService.onDidExecuteCommand(e => {
-			// These commands don't trigger onDidType.
-			const commands = new Set([
-				CoreEditingCommands.Tab.id,
-				CoreEditingCommands.DeleteLeft.id,
-				CoreEditingCommands.DeleteRight.id,
-				inlineSuggestCommitId,
-				'acceptSelectedSuggestion'
-			]);
-			if (commands.has(e.commandId) && editor.hasTextFocus()) {
-				this.handleUserInput();
-			}
-		}));
+		this._register(
+			commandService.onDidExecuteCommand((e) => {
+				// These commands don't trigger onDidType.
+				const commands = new Set([
+					CoreEditingCommands.Tab.id,
+					CoreEditingCommands.DeleteLeft.id,
+					CoreEditingCommands.DeleteRight.id,
+					inlineSuggestCommitId,
+					'acceptSelectedSuggestion',
+				]);
+				if (commands.has(e.commandId) && editor.hasTextFocus()) {
+					this.handleUserInput();
+				}
+			})
+		);
 
-		this._register(this.editor.onDidType((e) => {
-			this.handleUserInput();
-		}));
+		this._register(
+			this.editor.onDidType((e) => {
+				this.handleUserInput();
+			})
+		);
 
-		this._register(this.editor.onDidChangeCursorPosition((e) => {
-			if (this.session && !this.session.isValid) {
-				this.hide();
-			}
-		}));
+		this._register(
+			this.editor.onDidChangeCursorPosition((e) => {
+				if (this.session && !this.session.isValid) {
+					this.hide();
+				}
+			})
+		);
 
-		this._register(toDisposable(() => {
-			this.disposed = true;
-		}));
+		this._register(
+			toDisposable(() => {
+				this.disposed = true;
+			})
+		);
 
-		this._register(this.editor.onDidBlurEditorWidget(() => {
-			this.hide();
-		}));
+		this._register(
+			this.editor.onDidBlurEditorWidget(() => {
+				this.hide();
+			})
+		);
 	}
 
 	private handleUserInput() {
@@ -146,7 +170,8 @@ export class InlineCompletionsModel extends Disposable implements GhostTextWidge
 			this.cache,
 			triggerKind,
 			this.languageConfigurationService,
-			this.languageFeaturesService.inlineCompletionsProvider
+			this.languageFeaturesService.inlineCompletionsProvider,
+			this.debounceValue
 		);
 		this.completionSession.value.takeOwnership(
 			this.completionSession.value.onDidChange(() => {
@@ -199,7 +224,8 @@ export class InlineCompletionsSession extends BaseGhostTextWidgetModel {
 		private readonly cache: SharedInlineCompletionCache,
 		private initialTriggerKind: InlineCompletionTriggerKind,
 		private readonly languageConfigurationService: ILanguageConfigurationService,
-		private readonly registry: LanguageFeatureRegistry<InlineCompletionsProvider>
+		private readonly registry: LanguageFeatureRegistry<InlineCompletionsProvider>,
+		private readonly debounce: IFeatureDebounceInformation,
 	) {
 		super(editor);
 
@@ -231,7 +257,7 @@ export class InlineCompletionsSession extends BaseGhostTextWidgetModel {
 		}));
 
 		this._register(this.registry.onDidChange(() => {
-			this.updateSoon.schedule();
+			this.updateSoon.schedule(this.debounce.get(this.editor.getModel()));
 		}));
 
 		this.scheduleAutomaticUpdate();
@@ -336,7 +362,7 @@ export class InlineCompletionsSession extends BaseGhostTextWidgetModel {
 		// Since updateSoon debounces, starvation can happen.
 		// To prevent stale cache, we clear the current update operation.
 		this.updateOperation.clear();
-		this.updateSoon.schedule();
+		this.updateSoon.schedule(this.debounce.get(this.editor.getModel()));
 	}
 
 	private async update(triggerKind: InlineCompletionTriggerKind): Promise<void> {
@@ -346,6 +372,8 @@ export class InlineCompletionsSession extends BaseGhostTextWidgetModel {
 
 		const position = this.editor.getPosition();
 
+		const startTime = new Date();
+
 		const promise = createCancelablePromise(async token => {
 			let result;
 			try {
@@ -355,6 +383,10 @@ export class InlineCompletionsSession extends BaseGhostTextWidgetModel {
 					token,
 					this.languageConfigurationService
 				);
+
+				const endTime = new Date();
+				this.debounce.update(this.editor.getModel(), endTime.getTime() - startTime.getTime());
+
 			} catch (e) {
 				onUnexpectedError(e);
 				return;