You can get rid of earthquake effects... and the reddening effect too in case you mean the red flash which indicates taking damage.
These can be turned off with cvars. You can change cvar's value in-game in the console but the effect will only last for the current match. To run these settings automatically each time you can save the settings in "custom.cfg" located at "Savage XR\game\" -folder. Open the file with notepad and add the following codes (each on their own line):
To remove the earthquake effects (caused by explosions and behemoth walk):
To remove red flash (caused by taking damage):
To remove white flash (caused by using medkit):
custom.cfg is run by autoexec.cfg automatically.
For minimizing blaze or explosion visuals there are ways but they can give unfair advantage over other players. Would consider them more or less wallhaxes.