Visuals are not being rendered / staying in proximity for a long time

This used to happen mainly in Goldbrook last season because nobody played frost wizard but everytime I had it happen a frost wizard was in the lobby.

It seems to me like the shear amount of visuals rendered due to the frost wizard animations causes an overflow of animations that can be rendered which appears to do the following:

Spell visuals not shown

Not showing visuals of spells you are casting e.g.: you hit a timewarp and it seems like its not there but it actually is and you just do not see its visuals, thats just one example, any visual can vanish due to that

Spell visuals/particles staying in proximity

Visuals are staying on the map e.g.: You see blink spots from Wizard evades on the ground even thought no wizard is around or you see some ice armor visuals where a frost wizard had the effect ages ago.

Lobbies crashing / bad FPS

This is something that definitely happened last season in goldbrook. I am not sure if there can be a related issues with the disconnects / low fps that currently happen to the people.

This should be looked at soon, as it really influences the gameplay on any class.