Can smart TVs keep up with 4K remux HDR decoding?

Hi everyone. I’ve set up my PC as a media center to stream movies locally within my home. I’m using a Philips 55OLED934/12 (2019 model) that runs Android TV with a MediaTek MT5887 chipset (4x ARM Cortex-A53 cores).

I’ve noticed that when I stream heavy 4K remux (uncompressed HDR) movies from my PC to the TV, playback stutters. Is this kind of performance limitation normal for smart TVs? Are they really this underpowered for high-bitrate content? Should I consider investing in a more powerful PC or different setup for smooth playback?