>> Should I say something?
Not during tefilah, however short it is! From COVID perspective, if you do not bother opening windows, you should daven even faster.
A Rav who happened to be stuck in a shul like that for a year, said that his solution was to come 30 minutes earlier and daven his normal speed. If other people join you, the problem will be fully solved.
The problem of speed davening, I think, is solely of confusing the tzibur. Hashem obviously understands you at any speed. For a humble example, I can (was able to) play chess 2 minutes against 5 minutes for a random chess-player of same average skill. I never measured, but I presume I can out-daven him too. Would my tefilah (or game) benefit from full 5 minute v. 2? Of course, they would. But you can’t say the shorter one is missing. For the tzibur, I can learn while the slow minyan is still davening. But other way around does not work.