diff --git a/Telegram/SourceFiles/lottie/lottie_animation.cpp b/Telegram/SourceFiles/lottie/lottie_animation.cpp
index ab21f635a3..6a37ce534a 100644
--- a/Telegram/SourceFiles/lottie/lottie_animation.cpp
+++ b/Telegram/SourceFiles/lottie/lottie_animation.cpp
@@ -22,6 +22,8 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace Lottie {
 namespace {
 
+const auto kIdealSize = QSize(512, 512);
+
 std::string UnpackGzip(const QByteArray &bytes) {
 	const auto original = [&] {
 		return std::string(bytes.constData(), bytes.size());
@@ -87,7 +89,7 @@ details::InitData Init(
 	return animation
 		? CheckSharedState(std::make_unique<SharedState>(
 			std::move(animation),
-			request,
+			request.empty() ? FrameRequest{ kIdealSize } : request,
 			quality))
 		: Error::ParseFailed;
 }
@@ -98,6 +100,8 @@ details::InitData Init(
 		const QByteArray &cached,
 		const FrameRequest &request,
 		Quality quality) {
+	Expects(!request.empty());
+
 	if (const auto error = ContentError(content)) {
 		return *error;
 	}
diff --git a/Telegram/SourceFiles/lottie/lottie_cache.cpp b/Telegram/SourceFiles/lottie/lottie_cache.cpp
index 10eb55b352..4f742773da 100644
--- a/Telegram/SourceFiles/lottie/lottie_cache.cpp
+++ b/Telegram/SourceFiles/lottie/lottie_cache.cpp
@@ -438,7 +438,7 @@ bool Cache::readHeader(const FrameRequest &request) {
 		|| (original.width() > kMaxSize)
 		|| (original.height() > kMaxSize)
 		|| (frameRate <= 0)
-		|| (frameRate > kMaxFrameRate)
+		|| (frameRate > kNormalFrameRate && frameRate != kMaxFrameRate)
 		|| (framesCount <= 0)
 		|| (framesCount > kMaxFramesCount)
 		|| (framesReady <= 0)
diff --git a/Telegram/SourceFiles/lottie/lottie_common.h b/Telegram/SourceFiles/lottie/lottie_common.h
index 7239644bda..53e9c66b6f 100644
--- a/Telegram/SourceFiles/lottie/lottie_common.h
+++ b/Telegram/SourceFiles/lottie/lottie_common.h
@@ -17,7 +17,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
 namespace Lottie {
 
 inline constexpr auto kTimeUnknown = std::numeric_limits<crl::time>::min();
-inline constexpr auto kMaxFileSize = 1024 * 1024;
+inline constexpr auto kMaxFileSize = 2 * 1024 * 1024;
 
 class Animation;
 
diff --git a/Telegram/SourceFiles/lottie/lottie_frame_renderer.h b/Telegram/SourceFiles/lottie/lottie_frame_renderer.h
index a399bc5058..abcf778c9b 100644
--- a/Telegram/SourceFiles/lottie/lottie_frame_renderer.h
+++ b/Telegram/SourceFiles/lottie/lottie_frame_renderer.h
@@ -23,9 +23,11 @@ class Animation;
 
 namespace Lottie {
 
+// Frame rate can be 1, 2, ... , 29, 30 or 60.
+inline constexpr auto kNormalFrameRate = 30;
 inline constexpr auto kMaxFrameRate = 60;
-inline constexpr auto kMaxSize = 512;
-inline constexpr auto kMaxFramesCount = 180;
+inline constexpr auto kMaxSize = 4096;
+inline constexpr auto kMaxFramesCount = 210;
 inline constexpr auto kFrameDisplayTimeAlreadyDone
 	= std::numeric_limits<crl::time>::max();
 inline constexpr auto kDisplayedInitial = crl::time(-1);