Large FPS drop, but only in a specific Grineer Galleon room.

[xKable]

Most rooms in any tileset I can manage ~50fps with no problem. Some rooms, I get ~40fps but the game is still running smooth. But in this room, fps drops to around 20 and the frame rate is so bad that it affects my gameplay (RAM stays the same, but the Time doubles from 20ms to 40ms):

It's this room and only this room. Before entering, everything is fine. After leaving, everything is fine. But everything in between is a slo-mo festival of awful performance.

[CxLL]

I'll approach this issue assuming that you have already tried testing different display settings from the game.

Have you tried experimenting with the launcher settings that used to help fps drops directly after update 18?

These include disabling 64bit mode and verifying and optimizing the download cache. 

You should also try allowing the game to do the filtering and optimization by disabling related settings in your gpu's control panel.

Edited April 21, 2016 by cxll