TimescaleDB has not so good performance and on-disk data compression rate comparing to ClickHouse [1]. TimescaleDB is good for cases with relatively small amounts of time series data (e.g. up to a few tens of billions rows) when you already use Postgresql and don't want introducing new database for time series data.

[1] https://benchmark.clickhouse.com/#eyJzeXN0ZW0iOnsiQWxsb3lEQi...