Performence issue with UBO

i'm using OpenGL 4.1 (and SFML on Windowing), and recently i begin using the UBO but i've some issues, i do this

static constexpr auto ACCESS_MODE = BitfieldAccessMode::MAP_WRITE_BIT | BitfieldAccessMode::MAP_INVALIDATE_RANGE_BIT;

const auto &projection_matrix = m_cache.matrices[MatrixType::Projection];
const auto &view_matrix       = m_cache.matrices[MatrixType::View];

m_cache.transform_uniform_buffer->bind();

TransformBlock *ptr = reinterpret_cast<TransformBlock*>(m_cache.transform_uniform_buffer->mapRange(ACCESS_MODE, 0, sizeof(TransformBlock)));

ptr->projection = projection_matrix.matrix;
ptr->view = view_matrix.matrix;

ptr = nullptr;

m_cache.transform_uniform_buffer->unmap();

m_cache.transform_uniform_buffer->unbind();

but i got 1 fps, this

auto tp = Clock::now();
m_window.display();
auto tp2 = Clock::now();

storm::DLOG("t: %f", std::chrono::duration_cast<std::chrono::milliseconds>(tp2 - tp).count());

print

[Debug] t: 568
[Debug] t: 1033
[Debug] t: 1006
[Debug] t: 684

Sorry for my english, i've recently started to learn it.